title: An evaluation of some early obstetrical instruments.
authors.forename: D N
authors.initials: DN
authors.lastname: Burns
authors.forename: L D
authors.initials: LD
authors.lastname: Calache
mesh_terms: D036861:Delivery, Obstetric / Q000266:history / Q000295:instrumentation*; D005260:Female; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D009772:Obstetrical Forceps / Q000266:history; D009774:Obstetrics / Q000266:history / Q000295:instrumentation*; D011247:Pregnancy; D014481:United States; D014719:Vesicovaginal Fistula / Q000266:history