Singh, Jeevan, Dikshya Hamal, and Avish Karmacharya. “Comparision of Caudal Ropivacaine, Ropivacaine Plus Ketamine and Ropivacaine Plus Fentanyl Administration for Postoperative Analgesia in Children”. Journal of Nepal Paediatric Society 32, no. 3 (February 23, 2013): 210–215. Accessed April 26, 2024. https://www.nepjol.info/index.php/JNPS/article/view/6956.