Nandikanti Lahari, Sammarco Anne G, Kobernik Emily K, DeLancey John O L
University of Michigan School of Public Health, Ann Arbor, MI.
Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI.
Am J Obstet Gynecol. 2018 May;218(5):537-539. doi: 10.1016/j.ajog.2018.02.005. Epub 2018 Feb 15.