Rahman, M. .; Rahmn, M. H. .; Kamrujjaman, M.; Islam, M. S. A Comparative Study of Caudal Epidural Bupivacaine With Bupivacaine Plus Fentanyl and Bupivacaine Plus Neostigmine for Anaesthesia and Postoperative Analgesia in Children Undergoing Sub-Umbilical Surgeries. j Bangladesh Soc Anaesthesiologists 2019, 32, 3-9.