Bailit JL, Grobman W, Zhao Y, Wapner RJ, Reddy UM, Varner MW, Leveno KJ, Caritis SN, Iams JD, Tita AT, Saade G, Sorokin Y, Rouse DJ, Blackwell SC, Tolosa JE, Van Dorsten JP; Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine (MFMU) Units Network.
American Journal of Obstetrics and Gynecology June 2015-05-19