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Breast cancer and abortion: collaborative reanalysis of data from 53 epidemiological studies, including 83 000 women with breast cancer from 16 countries

Beral, Valerie; Bull, Diana; Doll, Richard; Peto, Richard; Reeves, Gillian K; Banks, Emily; La Vecchia, Carlo; Bain, Christopher; Gajalakshmi, V; Bergkvist, L; Yuan, J.M


Background The Collaborative Group on Hormonal Factors in Breast Cancer has brought together the worldwide epidemiological evidence on the possible relation between breast cancer and previous spontaneous and induced abortions. Methods Data on individual women from 53 studies undertaken in 16 countries with liberal abortion laws were checked and analysed centrally. Relative risks of breast cancer - comparing the effects of having had a pregnancy that ended as an abortion with those of never...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Lancet, The (UK edition)
DOI: 10.1016/S0140-6736(04)15835-2


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