Thiel John
Department of Obstetrics and Gynecology, University of Saskatchewan, Saskatoon, SK, Department of Obstetrics and Gynecology, Regina Qu'Appelle Health Region, Regina, SK.
J Obstet Gynaecol Can. 2012 Jul;34(7):611-2. doi: 10.1016/s1701-2163(16)35307-5.