Perez Alejandro, Caban-Martinez Alberto J, Alvarez Wilfredo, Salom Emery M
Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, FL, USA.
Int J Gynaecol Obstet. 2008 Jul;102(1):78-9. doi: 10.1016/j.ijgo.2008.02.014. Epub 2008 May 27.