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Reliability of reporting by women taking part in a prospective contraceptive study

A prospective study is in progress at 17 family planning clinics to try to provide a balanced view of the beneficial and harmful effects of different methods of contraception. During follow-up, data about pregnancies and their outcome, hospital visits, and changes in contraceptive practices are coll...

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Bibliografiske detaljer
Main Authors: Vessey, Martin P., Johnson, Bridget, Donnelly, James
Format: Artigo
Sprog:Inglês
Udgivet: 1974
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC478847/
https://ncbi.nlm.nih.gov/pubmed/4854097
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