Hombal, Prashant, Anupama M. Gudadappanavar, and Avinash Kavi. 2016. “Randomized Clinical Trial Comparing the Effect of Paracetamol With Diclofenac in Combination With on Request Rescue Analgesic Tramadol: Analgesic Efficacy, Safety and Tolerability After Abdominal Surgery”. International Surgery Journal 3 (2):557-61. https://doi.org/10.18203/2349-2902.isj20160702.