By Livermore L.   Cochrane R.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|26|4|307-310

Informa Healthcare‎(2006)‎

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By Livermore L.   Monteiro R.   Rymer J.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|27|8|816-818

Informa Healthcare‎(2007)‎

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