Moyer Cheryl A, Adanu Richard M, Engmann Cyril M
Global REACH and Department of Medical Education, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
Int J Gynaecol Obstet. 2013 Sep;122(3):263-5. doi: 10.1016/j.ijgo.2013.04.010. Epub 2013 Jun 26.