Parker William H, Levy Barbara
Department of Obstetrics, Gynecology, & Reproductive Sciences, UC San Diego, La Jolla, California.
Department of Obstetrics and Gynecology, George Washington University School of Medicine and Health Sciences, Washington, DC.
Obstet Gynecol. 2020 Aug;136(2):423-424. doi: 10.1097/AOG.0000000000004018.