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ISSN:0003-2697|256|2|229-237

Elsevier‎(1998)‎

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By Williams J.   Bjornsson S.   Cameron A. D.   Mathers A.   Jill S. Z. S. Yahya   Pell P.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|19|6|598-601

Informa Healthcare‎(1999)‎

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