title: Increased blood loss in upright positions originates from perineal damage.
authors.forename: A
authors.initials: A
authors.lastname: de Jonge
authors.forename: A L M
authors.initials: AL
authors.lastname: Lagro-Janssen
mesh_terms: D036861:Delivery, Obstetric / Q000379:methods*; D005260:Female; D006801:Humans; D010502:Perineum; D006473:Postpartum Hemorrhage / Q000209:etiology*; D011187:Posture; D011247:Pregnancy