Ma, Kimberly K.;
Mele, Lisa;
Landon, Mark B.;
Spong, Catherine Y.;
Ramin, Susan M.;
Casey, Brian;
Wapner, Ronald J.;
Varner, Michael W.;
Rouse, Dwight J.;
Thorp, John M.;
Sciscione, Anthony;
Catalano, Patrick;
Harper, Margaret;
Saade, George;
Caritis, Steve N.;
Sorokin, Yoram;
Peaceman, Alan M.;
for the National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network:
Londhe, Vedang A.;
Nolen, Tracy L.;
Das, Abhik;
Higgins, Rosemary D.;
Tyson, Jon E.;
Oh, William;
Devaskar, Sherin U.;
for the National Institute of Child Health and Human Development Neonatal Research Network: