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Abstracts from Cochrane Reviews that relate to the practice of obstetrics and gynecology Address correspondence to: James P. Neilson, Professor of Obstetrics and Gynaecology, Head of School of Reproductive & Developmental Medicine, University of Liverpool, Joint Co-ordinating Editor, Cochrane Pregnancy & Childbirth Group, Liverpool Women's Hospital, Crown Street, Liverpool L8 7SS, UK; e-mail: [email protected]. Cochrane Reviews are regularly updated as new evidence emerges and in response to feedback, and the Cochrane Library (http://www.thecochranelibrary.com) should be consulted for the most recent version of the review.
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Perrotta et al. (2008) studied this question.
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