Sawaya George F, Kuppermann Miriam
Dr. Sawaya and Dr. Kuppermann are from the Department of Obstetrics, Gynecology, and Reproductive Sciences at the University of California, San Francisco, San Francisco, California; e-mail:
Obstet Gynecol. 2015 Feb;125(2):308-310. doi: 10.1097/AOG.0000000000000670.