title: Randomised trial comparing the upright and supine positions for the second stage of labour.
authors.forename: E
authors.initials: E
authors.lastname: Eason
mesh_terms: D036861:Delivery, Obstetric / Q000379:methods*; D005260:Female; D006801:Humans; D016017:Odds Ratio; D010502:Perineum / Q000293:injuries*; D011187:Posture; D011247:Pregnancy; D016032:Randomized Controlled Trials as Topic