Mahmoud Ahmed Abdel Salam, Medhat Helaly Allam, Mohamed Mohamed Abo Elenin, Mohammed Al-Saeed Abdo Abu Hatab. COMPARATIVE STUDY BETWEEN POSTOPERATIVE ANALGESIC EFFECTS OF ADDING INTRAINCISIONAL MEPERIDINE VERSUS INTRAINCISIONAL TRAMADOL TO BUPIVACAINE IN ELECTIVE CESAREAN SECTION UNDER SPINAL ANESTHESIA. J Popl Ther Clin Pharmacol. 2021;28(2):791-800. doi:10.53555/rrehga29