title: Position during labor and delivery: history and perspective.
mesh_terms: D036861:Delivery, Obstetric; D004739:England; D005260:Female; D005333:Fetus; D005602:France; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049690:History, Ancient; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D009774:Obstetrics / Q000266:history*; D011187:Posture; D011247:Pregnancy; D014481:United States