Mastrobattista, Joan M.;
Klebanoff, Mark A.;
Carey, J. Christopher;
Hauth, John C.;
MacPherson, Cora A.;
Ernest, J.;
Cotroneo, Margaret;
Leveno, Kenneth J.;
Wapner, Ronald;
Varner, Michael;
Iams, Jay D.;
Moawad, Atef;
Sibai, Baha M.;
Miodovnik, Menachem;
Dombrowski, Mitchell;
O'Sullivan, Mary J.;
VanDorsten, J. Peter;
Langer, Oded;
for the National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Netw:
