@article{ea3631dbb8964c939ed723a4d5520720,
title = "A multicenter clinical investigation employing ethinyl estradiol combined with dl-norgestrel as a postcoital contraceptive agent",
abstract = "692 women were enrolled in a multicenter clinical trial to evaluate a combination of ethinyl estradiol and dl-norgestrel as a postcoital contraceptive. When compared with various formulas predicting the probability of pregnancy in this group, the number of pregnancies observed appears to be reduced to approximately 84%. The combination of 200 μg of ethinyl estradiol and 2 mg of dl-norgestrel seems to be effective as a postcoital contraceptive with several advantages over estrogens alone.",
author = "Yuzpe, {A. A.} and Smith, {R. P.} and Rademaker, {A. W.}",
note = "Funding Information: Received August 4, 1981; revised and accepted November 25, 1981. *This was a project of and funded by the Canadian Committee for Fertility Research. tReprint requests: Dr. A. Albert Yuzpe, Associate Professor, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Western Ontario, London, Ontario, Canada. :j:Clinical Instructor, Department of Family Medicine, University of British Columbia, Vancouver, British Columbia, Canada. §Assistant Professor, Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.",
year = "1982",
doi = "10.1016/s0015-0282(16)46157-1",
language = "English (US)",
volume = "37",
pages = "508--513",
journal = "Fertility and Sterility",
issn = "0015-0282",
publisher = "Elsevier Inc.",
number = "4",
}