Singh J, Hamal D, Karmacharya A. Comparision of Caudal Ropivacaine, Ropivacaine Plus Ketamine and Ropivacaine Plus Fentanyl Administration for Postoperative Analgesia in Children. J. Nepal Paedtr. Soc. [Internet]. 2013 Feb. 23 [cited 2024 Apr. 25];32(3):210-5. Available from: https://www.nepjol.info/index.php/JNPS/article/view/6956