McMaster-Fay Roger A
Department of Obstetrics and Gynaecology, Faculty of Medicine, Central Clinical, University of Sydney, PO Box 82, Emu Plains, Sydney, New South Wales 2750, Australia.
Am J Obstet Gynecol. 2015 Jul;213(1):113. doi: 10.1016/j.ajog.2015.03.017. Epub 2015 Mar 7.