Open AccessFirst-trimester bleeding characteristics associate with increased risk of preterm birth: data from a prospective pregnancy cohort
Author(s) -
Digna R. Velez Edwards,
D. D. Baird,
R. Hasan,
D. A. Savitz,
K. E. Hartmann
Publication year - 2012
Publication title -
carolina digital repository (university of north carolina at chapel hill)
Language(s) - English
DOI - 10.17615/ee3p-5r50
Subject(s) - obstetrics , pregnancy , medicine , prospective cohort study , first trimester , cohort study , second trimester , gestation , biology , genetics