1. Maternal Early Pregnancy Serum Metabolomics Profile and Abnormal Vaginal Bleeding as Predictors of Placental Abruption: A Prospective Study Gelaye, Bizu; Sumner, Susan J.; McRitchie, Susan; Carlson, James E.; Ananth, Cande V.; Enquobahrie, Daniel A.; Qiu, Chunfang; Sorensen, Tanya K.; Williams, Michelle A. 2016 Articles Pregnancy--Complications--PreventionMetabolitesPlacentaObstetricsGynecology