By Brown O.   Mahendran D.   Lieberman B.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|19|1|82-83

Informa Healthcare‎(1999)‎

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By Dixon J   Pillai M   Mahendran D   Brooks M   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|24|7|760-764

Informa Healthcare‎(2004)‎

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