a Department of Obstetrics Gynaecology, CHUM-University of Montreal, Montreal, Canada b Department of psychology, University of Montreal, CP 6128, succursale Centre-Ville Montreal, Quebec, H3C 3J7, Canada c University of Montreal, Montreal, Canada d Department of Mathematics and Statistics, University of Montreal, Montreal, Canada e Department of Gynaecology, Hôtel-Dieu Hospital, 3840, Saint-Ur...