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NRC Research Press‎(2008)‎

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By Chico A.   Manzanares J.M.   Halperin I.   de Osaba M.J.M.   Adelantado J.   Webb S.M.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|64|1|143-146

Elsevier‎(1996)‎

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