Hutton Eileen K, Hannah Mary E, Ross Susan, Joseph K S, Ohlsson Arne, Asztalos Elizabeth, Willan Andrew R, Allen Alexander C, Armson B Anthony, Gafni Amiram, Mangoff Kathryn, Sanchez Johanna J, Barrett Jon F
Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada.
Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON, Canada.
BJOG. 2016 Mar;123(4):644. doi: 10.1111/1471-0528.13769.