Sosa C, Althabe F, Belizan J, Buekens P, Risk Factors for Postpartum Hemorrhage in Vaginal Deliveries in a Latin-American Population, The American College of Obstetricians and Gynecologists, JUNE 2009, NO. 6, VOL. 113:1313-9

Althabe, Fernando;Belizán, José Miguel;Buekens, Pierre;Sosa-Estani, Sergio;