Original Article: PDF OnlyConception Control by Long-acting Progestogens Preliminary ReportSIEGEL, IRVING M.D., F.A.C.O.G. Author Information Departments of Obstetrics and Gynecology of the Chicago Medical School, Mount Sinai Hospital, and Edgewater Hospital, Chicago, Ill. Obstetrics & Gynecology 21(6):p 666-668, June 1963. Buy © 1963 The American College of Obstetricians and Gynecologists
