title: Posterior presentation revisited.
authors.forename: J O
authors.initials: JO
authors.lastname: Escamilla
mesh_terms: D002585:Cesarean Section; D004420:Dystocia / Q000628:therapy; D005260:Female; D006801:Humans; D007746:Labor Presentation; D009772:Obstetrical Forceps; D011247:Pregnancy; D012399:Rotation