Obstet Gynecol
Hughes BL, Sandoval GJ, Saade GR, Clifton RG, Reddy UM, Bartholomew A, Salazar A, Chien EK, Tita ATN, Thorp JM Jr, Metz TD, Wapner RJ, Sabharwal V, Simhan HN, Swamy GK, Heyborne KD, Sibai BM, Grobman WA, El-Sayed YY, Casey BM, Parry S, Macones GA, Prasad M, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Maternal-Fetal Medicine Units (MFMU) Network
doi: 10.1097/AOG.0000000000005703