Affiliation: | a Laboratoire de Physiologie materno-foetale, Département des Sciences Biologiques, Université du Québec à Montréal, C.P. 8888, Succursale “Centre-Ville”, Montreal, Quebec, Canada H3C 3P8 b Department of Obstetrics and Gynecology, CHUM, Montreal, Quebec, Canada H3C 3P8 |