Bowman Z S, Simons M, Sok C, Draper M L
Department of Obstetrics and Gynecology, University of Utah Health Sciences Center and Intermountain Healthcare , Salt Lake City, UT , USA.
J Obstet Gynaecol. 2014 Nov;34(8):735. doi: 10.3109/01443615.2014.920799. Epub 2014 Jun 9.