Haptoglobin phenotype and abnormal uterine artery Doppler in a racially diverse cohort

Tracey L. Weissgerber, Paula L. McGee, Leslie Myatt, John C. Hauth, Michael W. Varner, Ronald J. Wapner, John M. Thorp, Brian M. Mercer, Alan M. Peaceman, Susan M. Ramin, Philip Samuels, Anthony C. Sciscione, Margaret Harper, George Saade, Yoram Sorokin, Natl Inst of Child Hlth and Hum Devmt Matern Fetal Med Units Network Eunice Kennedy Shriver