PubMed · 508036
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E L Chusid, H A Bickerman. 1979. Oxygen therapy.. https://pubmed.ncbi.nlm.nih.gov/508036/
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A missing element in public relations programs is evaluation. This article describes how to evaluate the effectiveness of a program by developing measurable goals and objectives.
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Thyroid function was studied in 170 patients, using technetium-99m (99Tc) and oral radio-iodine (131I); 110 patients had normal thyroid function, and 60 had hyperthyroidism. The 20-minute 99mTc uptake gave an accurate assessment of thyroid function in 95% of patients, and the 24-hour 131I uptake was accurate in 92%. One hundred 99mTc and 131I scintiscans were compared by 3 observers. Scans obtained with each isotope were of comparable quality, and in only 1 patient were both scans of poor quality. 99mTc is as good as 131I for assessing thyroid function and morphology, but has several advantages over 131I.