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In the ORIGINAL CONTRIBUTION "Protection Against Endometrial Carcinoma by Combination-Product Oral Contraceptives," published in the Jan 22/29 issue of The Journal (1982;247:475-477), it was stated on page 477, in the second full paragraph in the center column, that "Kaufman et al1 analyzed data from the Boston Collaborative Drug Study." This is incorrect. The data analyzed by Kaufman and co-workers were from the Drug Epidemiology Unit of Boston University School of Medicine.
Incorrect Source of Data Cited. JAMA. 1982;247(22):3083. doi:10.1001/jama.1982.03320470031027
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