By Littlewood S.J.   Redhead A.   Herrero y Saenz de Cabezon R.   Viela Sala C.   Subirats Gomis S.   Romaguera Lliso A.   Gomez Bellvert C.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|78|1|83-89

Elsevier‎(1998)‎

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