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The British Retrospective and Prospective Studies
Author(s) -
McEwan John
Publication year - 1979
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1002/j.1879-3479.1979.tb00962.x
Subject(s) - medicine , pill , interpretation (philosophy) , family planning , family medicine , pediatrics , research methodology , population , nursing , environmental health , computer science , programming language
McEwan J (Helen Brook Dept of Family Planning, King's College Hospital, London, England). The British retrospective and prospective studies. Int J Gynecol Obstet 16: 525–528, 1979 The clinician needs scientific evidence to enable him to advise patients efficiently and correctly. The sources of this evidence are listed and the part played by each discussed. The rarity of adverse effects from the use of oral contraceptive pills entails the need to make use of epidemiologic studies. The different types of study are briefly described, with examples from recent work carried out in Britain. The advantages and problems of interpretation associated with each are discussed. The present position taken by United Kingdom doctors working in the field of contraceptive practice is summarized.