title: Labor-saving devices.
authors.forename: M
authors.initials: M
authors.lastname: Clark
authors.forename: D
authors.initials: D
authors.lastname: Shapiro
mesh_terms: D002585:Cesarean Section / Q000706:statistics & numerical data; D005260:Female; D005323:Fetal Monitoring / Q000295:instrumentation*; D006801:Humans; D011247:Pregnancy; D012449:Safety; D014481:United States