Leetheeragul, J.; Sirisomboon, R.; Pimol , K.; Lertbunnaphong, T.; Limsiri, P. Incidence and Pregnancy Outcomes of Primary Postpartum Hemorrhage Following Implementation of Postpartum Drape with a Calibrated Bag after Normal Vaginal Delivery. Siriraj Med J 2020, 72, 219-225.