title: Predicting the risk of pre-eclampsia between 11 and 13 weeks' gestation by combining maternal characteristics and serum analytes, PAPP-A and free β-hCG.
authors.affiliation: Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110, USA. goetzingerk@wudosis.wustl.edu
authors.forename: Katherine R
authors.initials: KR
authors.lastname: Goetzinger
authors.forename: Ashima
authors.initials: A
authors.lastname: Singla
authors.forename: Sabrina
authors.initials: S
authors.lastname: Gerkowicz
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Dicke
authors.forename: Diana L
authors.initials: DL
authors.lastname: Gray
authors.forename: Anthony O
authors.initials: AO
authors.lastname: Odibo