Grewal, Dr. Tejinderpal, Dr. Balwinder Kaur, Dr. Parmod Kumar, and Dr. Sukhdeep Kaur. “Comparison of Ropivacaine 0.2% Alone and in Combination With Fentanyl for Caudal Anesthesia in Paediatric Patients”. International Journal of Innovative Research in Medical Science 4, no. 02 (February 2, 2019): 103 to 107. Accessed February 18, 2019. http://ijirms.in/index.php/ijirms/article/view/546.