title: Laboratory comparison of modern vacuum extractors.
authors.forename: M L
authors.initials: ML
authors.lastname: Schwartz
mesh_terms: D005113:Extraction, Obstetrical / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008953:Models, Anatomic; D011247:Pregnancy; D014620:Vacuum Extraction, Obstetrical / Q000295:instrumentation*