title: A clinical trial of active management of labor.
authors.forename: A M
authors.initials: AM
authors.lastname: Peaceman
authors.forename: M L
authors.initials: ML
authors.lastname: Socol
authors.forename: J A
authors.initials: JA
authors.lastname: López-Zeno
mesh_terms: D002585:Cesarean Section / Q000706:statistics & numerical data*; D036861:Delivery, Obstetric / Q000379:methods*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D007744:Obstetric Labor Complications / Q000517:prevention & control; D011247:Pregnancy