By Mehta Shobha H.   Blackwell Sean C.   Chadha Rati   Sokol Robert J.   in Journal of Maternal-Fetal and Neonatal Medicine

ISSN:1476-4954|20|10|729-733

Informa Healthcare‎(2007)‎

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By Bailey Beth A   Sokol Robert J   in Expert Review of Obstretrics and Gynecology

ISSN:1747-4108|3|2|245-255

Informa Healthcare‎(2008)‎

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