Effective action at finite temperature.
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Journal Article↗
Biomedical subjects
Publications and source records attributed to D Toms.
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A detailed ultrasonographic examination of the fetal vertebral column may be very close to normal at 16 weeks' gestation, yet may conclusively demonstrate spina bifida four and one-half weeks later, as exemplified in a patient we report. We suggest that if there is any reason to investigate a possible neural tube defect, a detailed ultrasonographic examination of the entire vertebral column should be made at approximately 20 weeks if spina bifida has not been demonstrated earlier.