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H Marret

Publications and source records attributed to H Marret.

At least 19 recordsLinked to original sources

Factors influencing laparoconversions during the learning curve of laparoscopic myomectomy.

BACKGROUND: To assess the probability of conversion of a laparoscopic myomectomy to an open procedure, we only found the score developed by Dubuisson et al. (2001) based on four preoperative risk factors. Routinely this score is not appropriate, as realized by the most skilled laparoscopic surgeons. METHODS: The aim of this study was to identify the preoperative factors affecting the risk of conversion in data collected in different centers among a population of surgeons at the beginning of their experience in laparoscopic myomectomy. We collected preoperative clinical and ultrasonography data for all laparoscopic myomectomies performed in 11 hospital centers between January 1996 and December 2000. Data were available for 116 patients. Multiple logistic regression was use to develop a simple predictive model based on available preoperative risk factors of laparoconversion. RESULTS: We encountered 33 laparoconversions (28%) compared to an expected number of 7.8 using Dubuisson's score. We confirmed the importance of two of the four risk factors in Dubuisson's model: biggest myoma size at ultrasonography (increased 1 mm) (OR: 1.06) and intramural type (OR: 3.25) of the dominant myoma. However, we also identified another risk factors: surgeon's experience (OR: 0.15). Simple score was calculated and used to provide an estimated risk of conversion. CONCLUSION: Our model is a useful tool to predict laparoconversion for surgeons beginning in laparoscopic myomectomy. Ultrasound evaluation is essential before performing the procedure. Skilled surgeons in laparoscopy and in laparoscopic myomectomy must help their trainees during their learning curve in order to reduce laparoconversion rate.

Adult↗

Power Doppler vascularity index for predicting malignancy of adnexal masses.

OBJECTIVE: To assess the performance of a power Doppler vascularity index in the preoperative diagnosis of ovarian malignancy. METHODS: Adnexal masses (n = 101) were examined prospectively with power Doppler ultrasonography before surgical treatment. The tumor vascularity index (power Doppler index, PDI) was determined by quantification of the number of pixels in a defined region of interest according to the formula: number of colored pixels/(total number of pixels minus the number of pixels in the fluid or avascular areas). It was estimated on selected frames of the tumors using an in-house color-quantifying program added to MATLAB 6.0 software. Inter- and intraobserver reproducibilities of PDI assessment were evaluated. Intratumoral blood flow velocity waveforms were obtained to determine the lowest resistance index (RI). A subjective visual score of power Doppler signals in the tumor was used to classify it as having low, moderate or high vascularity. The discriminatory ability of this score was compared to that of RI and PDI measurement. RESULTS: Histology identified 23 malignant and 78 benign lesions. The PDI was considerably higher in malignant than in benign lesions (0.34 +/- 0.04 vs. 0.12 +/- 0.06; P < 0.001). The intra- and interobserver variabilities of PDI were low (intraclass correlation coefficients of 0.99 and 0.97, respectively). The PDI cut-off value to differentiate malignant from benign tumors was set at 0.265 (26.5% of the tumor being colored). Using this cut-off, sensitivity and specificity were 100% (95% CI, 87.8-100.0) and 97.4% (95% CI, 91.0-99.7) compared to 78.3% (95% CI, 56.3-92.5) and 83.1% (95% CI, 72.9-90.7) for RI (cut-off value of 0.53) and 78.3% (95% CI, 56.3-92.5) and 94.9% (95% CI, 87.4-98.6) for visual scoring. Logistic regression demonstrated that PDI was the best parameter for differentiating between malignant and benign tumors. CONCLUSION: The power Doppler vascularity index obtained using customized color quantifying software has high diagnostic value in discriminating between benign and malignant adnexal masses.

Adnexa Uteri↗

[Contribution of viral typing in cytological anomalies of the cervix].

Management practices for low-grade cervical lesions identified on screening swabs have been modified by research on the HPV. The appropriate approach for low-grade lesions is particularly difficult to determine due to the potential risk of malignant transformation coupled with the cost implications of treating lesions which will heal spontaneously in the majority of patients. The diagnosis of these low-grade lesions can be improved by thin layer swabs which have a greater sensitivity than conventional swabs. The current consensus is that swab results should be expressed according to the Bethesda classification. Routine tests for HPV (Hybrid Capture II) should be reserved for patients with an ASC-US swab. Colposcopy is indicated if the swab is positive for a low-grade lesion followed by cytology if the colposcopy is normal. If there is no evidence of HPV, search for oncogenes can lighten the treatment regimen due to the high specificity of the test. If a low-grade histological lesion (CIN1) is proven, cytocolposcopic surveillance should be proposed, surgical resection being undertaken in colposcopy cannot be performed. Here again search for HPV oncogenes at one year is an interesting alternative if the examination is negative. These practices are applicable in adolescents and HIV- positive patients who are particularly exposed to HPV.

Adolescent↗

Contrast-enhanced sonography during uterine artery embolization for the treatment of leiomyomas.

Uterine artery embolization (UAE) is a successful and safe treatment for symptomatic leiomyomas. However, rare complications such as premature menopause and uterine necrosis can arise because of embolization of non-target tissues. We studied the feasibility of using contrast-enhanced sonography with intravenous SonoVue just before, during and after complete occlusion of both uterine arteries. In a patient with multiple, large, symptomatic leiomyomas, contrast-enhanced imaging established that the UAE was technically successful and that myometrial vascularity was not reduced. Our case suggests that ultrasound contrast agents may have a role in monitoring UAE and thus may help prevent ischemic complications. Further studies are required to confirm this.

Arteries↗

Standard preoxygenation technique versus two rapid techniques in pregnant patients.

The aim of this study was to compare three different preoxygenation techniques in pregnant women by measuring end-tidal fractional oxygen concentration (FETO2): the traditional technique of 3min tidal volume breathing (VT x 3 min), 8 deep breaths (8 DB) and 4 deep breaths (4 DB). Twenty pregnant volunteers without pulmonary diseases were studied during the third trimester (36-38 weeks' gestation). Women were preoxygentated using a non-rebreathing respiratory circuit with a 3-L reservoir bag and a Capnomac Ultima calibrated before each patient to monitor FETO2 continuously. The three preoxygenation techniques were investigated in random order: VT x 3 min using an oxygen flow of 9 L min-1, 4 DB within 30s using an oxygen flow of 9 L min-1, and 8 DB within one minute using an oxygen flow of 15 L min-1. Between each technique, 5-min room air breathing was allowed to return to baseline FETO2 assessed by the Capnomac Ultima. An FETO2 >/= 90% was achieved more frequently with the VT x 3 min and the 8 DB techniques (76%) than with the 4 DB technique (18%) (P < 0.05). The average time required for obtaining an FETO2 >/= 90% was 107+/-37s. Both the VT x 3 min and the 8 DB techniques are therefore more effective for preoxygenation in pregnant patients than the 4 DB technique. In an acute obstetric emergency before rapid-sequence induction of general anaesthesia, 8 DB preoxygenation technique could be recommended.

Adult↗

[Prospective clinical and sonographic assessment of uterine artery embolization as the treatment of symptomatic uterine leiomyomata].

OBJECTIVE: To evaluate the effectiveness of the uterine artery embolization as the treatment of symptomatic uterine leiomyomata. PATIENTS AND METHODS: Eighty-five women with symptoms caused by uterine leiomyomata underwent uterine artery embolization as an alternative to surgery from january 1997 to june 2000. The effectiveness of this method was evaluated by clinical and sonographic examination. RESULTS: The recession average was of 18.9 months. There were ten failures. We had immediate failures (n = 5) with a case of technical failure, one endometrium cancer, one adenomyosis, one larger subserosal leiomyomata and one parametrial leiomyomata. We had recurrences (n = 5) with the occurrence of new leiomyomatas (1 intramural and 3 submucosal) and an evolution of previous leiomyomata. The average volume reduction was 51% for the uterus and 65% for the main fibroid at one year follow-up. Minor complications occurred in 5%. Permanent amenorrhoea was observed for 3.75% of the women. Using cox model, no predictive factors of embolisation effectiveness were found. DISCUSSION AND CONCLUSION: In the treatment of symptomatic uterine leiomyoma, uterine artery embolization is an effective alternative to surgery. After one year and half, we had 12.5% of failures.

Adult↗

[Sonographic diagnosis of ovarian tumors: pre-operative Doppler evaluation].

Pelvic sonography is the gold standard for diagnosis of ovarian masses. Only 2% of adnexal masses or malignant or bordeline tumors. Does Doppler US improve the diagnostic accuracy of sonography? The purpose of this article is to review current data and identify what areas still require further evaluation with regards to Doppler characterization of adnexal masses. It has been shown that Doppler evaluation of the ovary and cyst or tumor improves the diagnostic accuracy of US to differentiate between benign and malignant lesions. Hemodynamic data collected from pulsed Doppler imaging and Doppler energy vascular mapping have been shown to improve the characterization of malignant lesions. These data improve the accuracy of B-mode US combined with clinical evaluation and CA125 measurement. Nonetheless, the sensitivity and specificity values are between 85-90%, with few missed malignancies, but several false positive results. Useful Doppler data include the resistive index and the central intratumoral location of vascular flow. The use of 3D US with computer post-processing as well as sonographic contrast agents could provide additional information, but these techniques have not yet been validated. All suspicious adnexal lesions should be evaluated by an experienced sonographer and include discriminatory parameters to distinguish between benign and malignant lesions.

Female↗

[Spontaneous abortions of first trimester pregnancy: is uterine aspiration still in line?].

Spontaneous abortions of first trimester pregnancy is a frequent pathology in gynecology (more than 10% of clinical pregnancy). Since the mid of twentieth century, the gold standard of evacuation of spontaneous abortion is manual vacuum aspiration most of the time under general anesthesia. This method is used in France for all miscarriages after 7 weeks' gestation at the sonography (about 40,000 women in 1999) but complications are not rare. The vaginal sonography and new medical management changes the view. We can now use expectative management or medical management with misoprostol and/or mifepristone. We summarise the current literature and propose a randomised multicentric control trial.

Abortifacient Agents↗

Prospective sonographic assessment of uterine artery embolization for the treatment of fibroids.

OBJECTIVES: To evaluate sonographic features following uterine artery embolization and to assess using ultrasound the efficacy of embolization as the primary treatment of fibroids. DESIGN: Fifty-eight women (mean age, 44.5 years; range, 33-65 years) suffering from symptoms due to fibroids (menometrorrhagia, bulk-related symptoms, pelvic pain) were followed-up after uterine artery embolization by ultrasound examination at 3 months, 6 months, 1 year and 2 years with assessment of volume and vascularization of fibroids as well as uterine vascularization. RESULTS: Fifty-eight patients were examined at 3 months, 46 at 6 months, 36 at 1 year and 19 at 2 years. Most patients were improved or free of symptoms at 3 months (90%), 6 months (92%) and 1 year (87%) and all monitored patients were free of symptoms at 2 years. Clinical failure of treatment occurred in only two cases (3%). Progressive significant reduction in fibroid size with reference to the baseline was demonstrated during follow-up from 3 months (-29%) to 24 months (-86%). Absence of intrafibroid vessels was observed in all except three cases as early as 3 months, whereas perifibroid vessels persisted in 21 cases. No changes in uterine vascularization or uterine artery resistance were noted. CONCLUSIONS: Uterine artery embolization is a valuable endovascular method for the treatment of fibroids, resulting in marked reduction in fibroid size and disappearance of intrafibroid vessels without reduction in uterine vascularization which is well depicted by sonography.

Adult↗

Color Doppler energy prediction of malignancy in adnexal masses using logistic regression models.

OBJECTIVE: The aim of this study was to assess the usefulness of color Doppler energy in the preoperative diagnosis of ovarian malignancy using multivariate logistic regression analysis. METHODS: One hundred and thirty adnexal masses were studied with transvaginal B-mode, color energy, and pulsed Doppler ultrasonography before surgery in order to develop a model that could be used to determine malignancy. Each ultrasonographic variable (tumor size, wall thickness, septal structure, echogenicity, papillary projection, density (solid or not)) was included individually or combined together as part of the Sassone ultrasound score. Intratumoral blood flow velocity waveforms were obtained to determine pulsatility index and resistance index and a more subjective parameter, location of tumor vascularity, was also assessed. Menopausal status and serum CA 125 levels were also entered as categorical variables. Sonographic parameters were entered alone, then associated with menopausal status and CA 125 serum levels, and finally with Doppler energy measurements. Our model was then validated in a group of 68 adnexal masses and compared to the model of Alcazar. RESULTS: Eighteen adnexal masses (13.8%) were malignant or of low malignant potential. Multivariate analysis showed that papillary projection of the tumor wall, cyst with solid parts, resistance index with a cut-off value of 0.53, CA 125, and central blood flow location, were the only factors to be independent predictors of malignancy. Menopausal status was not an independent factor. For the final model including the Doppler energy parameter the best sensitivity and specificity were 83% and 93%, respectively, at a cut-off value of 10% probability of malignancy compared to 83% and 87% for the morphological variables alone. Validation of the model showed its diagnostic performance to be as good as that reported in the original population and better than the model of Alcazar. CONCLUSION: Sonographic analysis of adnexal masses including color Doppler energy shows the best predictive properties according to histological diagnosis, and improves preoperative diagnosis of malignancy.

Adolescent↗

[Value of fetal cerebral magnetic resonance imaging for the prenatal diagnosis and prognosis of corpus callosum agenesis].

OBJECTIVE: To evaluate MR contribution to prenatal diagnosis and prognosis of corpus callosum agenesis suspected by ultrasound and to ascertain how and when this examination should be included part in prenatal management of such malformation. PATIENTS AND METHODS: During a six-year period from January 1st 1994 and December 31st 2000, fifteen patients (and fifteen fetuses) were referred to our fetal medicine unit with suspicion of corpus callosum agenesis on prenatal ultrasound. Cerebral MRI was performed in all cases to confirm prenatal diagnosis. In our study, prenatal MRI examinations were retrospectively studied and compared with neuropathological examinations (n=8) or postnatal imaging (n=6). RESULTS: Corpus callosum agenesis were either complete (n=13) or partial (n=1). All were visible on prenatal MRI but only six on prenatal ultrasound. In one case, ultrasound suspicion of corpus callosum agenesis was ruled-out (false positive on prenatal ultrasound) by fetal cerebral MRI. In five cases corpus callosum agenesis was an isolated finding whereas in 12 cases associated malformations were encountered (cerebral n=7 or extra-cerebral n=5). MR depicted 7 of the 12 associated neurologic abnormalities. CONCLUSION: Prenatal MRI is a valuable complementary technique for either diagnosis of corpus callosum agenesis and depiction of associated neurologic abnormalities. Superiority of MR on prenatal sonography and its help in post-mortem examination of the brain (help in the choice of the pathologic technique and localisation of the samples) makes it essential even when pregnancy termination is considered.

Adult↗

[Intrauterine devices in general practice: a prospective study of 300 insertions].

OBJECTIVE: To assess the effectiveness of management practices of copper intrauterine devices (IUD) in general medicine. MATERIAL: and methods. A prospective study was conducted over a four-year period. Thirty-four experimented and volunteer general practitioners inserted 300 IUDs. Two hundred and ninety-seven patients were evaluated. A 375-mg copper IUD was used. Results are presented by 12-month device survival, cumulative discontinuation, and event rates per hundred women. RESULTS: At the end of the study 19.8% (n=59) of the women were lost to follow-up. Exposure time to IUD was 9245 cycles. Mean exposure time was 3917 cycles. Discontinuation rates for IUD were 82%, 67%, and 31% at 12, 36, and 48 months respectively. Renewal rate for this contraceptive device was 31.5%. Results confirmed that IUD were highly effective in this population: Pearl index 0.51% with four pregnancies. A very low expulsion rate (1.68%) and good tolerance (cumulative removal rate for medical reasons at 60 months=6.1%) were observed. At the end of the study, 61.3% of the women included had no complaints and had their IUD removed for desired pregnancy, replacement or personal reasons. CONCLUSIONS: Our findings are similar to reports in the literature; there was no evidence of differences between general practitioners and gynecologists. IUDs inserted by experimented general practitioners are safe and should continue to be offered as a contraceptive option for properly selected women. These findings suggest that specific training on contraceptives should be provided to interested general practitioners

Adult↗

[Second trimester cerclage of short cervixes: which technique to use? A retrospective study of 25 cases].

OBJECTIVE: To evaluate pregnancy outcome after therapeutic or emergency cerclage performed on the basis of clinical or/and ultrasound cervical modifications noted before 26 weeks of gestation and to precise which surgical procedure (Shirodkar or McDonald) is the most appropriate in these indications. PATIENTS AND METHODS: Retrospective study between January 1(st) 1996 and December 31(st) 2001 on 25 clinical charts of patients with suspected cervical incompetence who had second trimester cervical cerclage on the basis of clinical or ultrasound cervical length shortening. Patients with first trimester prophylactic cervical cerclage were excluded from analysis. The choice between the two surgical procedures (Shirodkar or McDonald) depended on surgeon preference but the two groups were identical for previous obstetrical history, time of cerclage and cervical modifications. Statistical analysis was performed using Chi 2 test or t-test according to the type of variables. RESULTS: In our series, 9 patients had cervical cerclage performed with Shirodkar (S) procedure and 16 had McDonald cerclage (MD). Mean operating time (S: 52 +/- 18 minutes; MD: 39 +/- 3 minutes; p=0.1) and mean hospital stay (S: 5.2 +/- 1.3 days; MD: 5.3 +/- 1.5 days; p=0.9) were not significantly different between the two procedures. The difference in mean gestational age at delivery, (S: 35.7 +/- 3.2 Wks; MD: 33.2 +/- 2.9 Wks; p=0.5) and in the number of premature deliveries before 32 completed weeks (S: 22.2%; MD: 43.7%; p=0.4) better in Shirodkar group didn't reach statistical signification. No statistical difference was noted in the number of admission in neonatal intensive care unit (S: 22.2%; MD: 31.2%; p=0.9) and in neonatal survival (S: 1 neonatal death; MD: 1 neonatal death) between the two groups. CONCLUSION: No conclusion regarding the most appropriate cervical cerclage procedure can be drawn from our study. However, Shirodkar procedure seems preferable to us due to tendency in a higher mean gestational age at delivery and because it didn't appeared to be longer or more difficult procedure. Multicentric studies may probably give better knowledge in this topic.

Adult↗

Gonadotropin level abnormalities in women with cyclic mastalgia.

OBJECTIVES: Women with cyclic mastalgia seem to be at risk of fibrocystic breast disease and/or breast cancer. We studied the relationships between mastalgia and hormone levels throughout the menstrual cycle. STUDY DESIGN: Ostensibly healthy women were monitored during a sum of 326 cycles. A case-control study compared personal and hormonal variables of 30 women experiencing cyclic mastalgia with those of 77 women without this symptom. RESULTS: Except sleeping times, no significant differences were found in personal variables. Cyclic mastalgia and symptoms of fluid retention were slightly associated. Menses and the luteal phase were significantly longer in cases than in controls. Gonadotropin but not ovarian hormone levels were also significantly higher in cases throughout the cycle. CONCLUSION: Cyclic mastalgia is less related to symptoms of fluid retention or to ovarian hormone levels than to regularly high gonadotropin levels, specific inhibitors might thus be used to alleviate the symptom.

Adult↗

Chromosomal defects and associated malformations in fetal cleft lip with or without cleft palate.

OBJECTIVE: To describe the incidence, associated features including chromosomal defects in fetuses, with cleft lip and/or palate and assess the need for karyotyping. METHODS: Retrospective study of 62 cases of prenatally diagnosed facial cleft lip and/or palate in a tertiary fetal medicine unit between January 1991 and December 1999. Chromosome analysis was performed in all fetuses with associated ultrasound findings and in 14 (39%) fetuses with isolated facial clefts. RESULTS: Associated abnormalities were detected in 26 (42%) of the 62 fetuses of which 22 (35%) fetuses had multiple other abnormalities. Central nervous system abnormalities and limb malformations were the most common. Three fetuses had genetic syndromes confirmed after birth. All fetuses with isolated clefts were chromosomally normal, whereas 15 of the 26 with additional abnormalities (58 or 24% of the total group) had chromosomal defects (eight cases of trisomy 13, five of trisomy 18, one unbalanced translocation between chromosomes 7 and 8, and one deletion 4p-). All 22 women who chose not to undergo fetal karyotype analysis delivered phenotypically normal infants. There were five midline clefts; each of them was associated with additional sonographic findings and four were associated with holoprosencephaly. CONCLUSION: Isolated facial clefting is not associated with an increased risk for chromosomal defect. Amniocentesis is recommended when facial cleft is found in association with additional ultrasonographic abnormalities as it is unnecessary for isolated clefts.

Abnormalities, Multiple↗

[Incidence, diagnosis and prognosis of ovarian metastasis in breast cancer].

Ovarian metastasis are frequently encountered during the course of breast cancer, concerning one woman in five among those suffering from the disease. These secondary ovarian lesions are usually small and bilateral with a non-cystic pattern and are more likely to be from primary infiltrating lobular carcinoma of the breast. Distinction between ovarian metastasis and primary ovarian cancer may sometimes be difficult and require immunohistochemical stains with various monoclonal antibodies. Primary ovarian cancer remains preponderant however, even in a woman with breast cancer. From a clinical point of view, ovarian metastasis are frequently unknown except in case of peritoneal dissemination. Trans-vaginal ultrasonography scan is the best examination when clinical signs give cause to suspect ovarian tumour. Although, systematic ultrasonography screening, as well as blood screening program using CA 125 and CA 15-3, should not be recommended because they lack sensibility and are too expensive. The development of ovarian metastasis during the course of a breast primary carcinoma is a negative prognostic factor with regards to the presence or absence of peritoneal dissemination.

Breast Neoplasms↗

[Methods for laparoscopy: open laparoscopy or closed laparoscopy? Attitude of the French Central University Hospital].

Standard technique of insufflation of the pneumoperitoneum includes the use of the Veress needle followed by the blind insertion of the umbilical trocar. To avoid blind trocar insertion, numerous techniques for the creation of the pneumoperitoneum have been reported: open-laparoscopy and micro-laparoscopy are the two major alternative methods used in France. The aim of this study was to determine the incidence of open-laparoscopy in the French departments of Gynecology of the University Hospitals. With this purpose, we send to each chief of the department of Gynecology in a University Hospital a simple questionnaire about the methods used in his division for the creation of pneumoperitoneum. Sixty-three chiefs of department have answered to the questionnaire. Thirteen (21%) answered they only used conventional technique. Ten (16%) departments perfonned always open-laparoscopy, and 40 University Hospital mostly used conventional technique combined sometimes when the initial procedure of insufflation failed or seems to be too dangerous (Obesity, previous laparotomy...). Five surgeons used a lateral rather than umbilical insertion for the openlaparoscopy in case of previous laparatomy. Fifteen departments used micro-laparoscopy since 1995, and mostly since 1998. We conclude that no simple technique can claim to be overwhelmingly superior. It seems tous dangerous to impose or to condemn any methods. Keeping the choice of the technique, learning security and organizing the survey of our results remain our recommendations for the approaches of abdominal entry for laparoscopy.

France↗

Low body mass index is an independent predictive factor of local recurrence after conservative treatment for breast cancer.

BACKGROUND: Obesity or increased body mass index (BMI) has been shown to have two important adverse effects related to breast cancer. First, several studies have identified an association between increased BMI and advanced stage breast cancer. Second, increased BMI has been shown to be associated with poorer prognosis. In a previous report, we had identified low BMI as a risk factor for local reccurence at five years. The objectives of this study were to evaluate the relationship between BMI and local control and to confirm this prognostic factor in a larger population with an important follow-up. MATERIALS AND METHODS: Between 1976 and 1988, 605 women with invasive breast carcinoma less than 4 cm in diameter underwent conservative surgery with axillary dissection and radiation therapy. The median follow-up time was 82 months. The risk of local recurrence and distant metastasis was evaluated by univariate retrospective analysis using Kaplan-Meier method for the main clinical and histologic factors. Those found to be significant were entered in a Cox model for multivariate analysis. RESULTS: Since the beginning of the study, 80 patients had developed local recurrence. The 5 years and 10 years local control rates were 91% and 83%, respectively. Four parameters were independent predictive factors of local recurrence: Age lower than 40 years (HR = 2.42 95% CI = [1.35-4.34]), BMI: elevation of one unit reducing the local recurrence of 0.92 95%CI = [0.85-0.99], multifocality of the tumor on pathological examination (HR = 2.12 95% CI = [1.16-3.88]) and positive axillary nodes HR = 0.54 95% CI = [0.31-0.95]. Size of the breast was not a predictive factor for local cancer recurrence. Low BMI did not increase risk of distant. CONCLUSION: Our study offers new data concerning the possibility that thinness may be related to local recurrence of breast cancer.

Adult↗