title: ABC of labour care: unusual presentations and positions and multiple pregnancy.
authors.forename: G
authors.initials: G
authors.lastname: Chamberlain
authors.forename: P
authors.initials: P
authors.lastname: Steer
mesh_terms: D001946:Breech Presentation; D036861:Delivery, Obstetric; D004420:Dystocia / Q000209:etiology; D005260:Female; D006801:Humans; D007746:Labor Presentation; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011295:Prenatal Care / Q000379:methods*; D011391:Prolapse; D014470:Umbilical Cord