Okonkwo, I. P.; Onyekwulu, F. A. A Comparative Study of Glycopyrrolate and Dexamethasone in the Control of Postoperative Nausea and Vomiting After Intrathecal Fentanyl and Bupivacaine for Caesarean Section. Int J Res Med Sci 2021, 9, 1236-1243.