| Literature DB >> 1676094 |
L Silvestre, Y Bouali, A Ulmann.
Abstract
Keywords: Biology; Contraception; Contraception Failure; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Agents, Postcoital; Contraceptive Usage; Endocrine System; Estrogens--therapeutic use; Family Planning; Hormones; Physiology; Probability; Progestational Hormones; Progesterone--therapeutic use; Research Methodology; Statistical Studies; Studies
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Year: 1991 PMID： 1676094 DOI： 10.1016/0140-6736(91)90018-k
Source DB: PubMed Journal: Lancet ISSN： 0140-6736 Impact factor: 79.321