By Beukenholdt R. W.   Allman A.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|22|6|688-688

Informa Healthcare‎(2002)‎

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By Koleskas D.   Karagiannis G.   Beukenholdt R. W.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|29|2|161-163

Informa Healthcare‎(2009)‎

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