Luke Barbara, Brown Morton B, Spector Logan G
Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, Michigan.
Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan.
Am J Obstet Gynecol. 2016 Jul;215(1):126-7. doi: 10.1016/j.ajog.2016.02.052. Epub 2016 Mar 2.