Epigastric pain after intravenous administration of oxytocin in patients undergoing lower segment cesarean section: A quasi experimental study comparing intravenous bolus with infusion technique - Kashif, Ali; Kiani, Rizwana; Shabbir, Syed; Mahmood, Tariq; Sabir, Ghulam; Fatima, Noor; Khan, Waseem (Anaesthesia, Pain & Intensive Care, 2020)