Giri, S., Chaudhuri, S., Jirel, S., Aryal, B., Kumar, D. and Gupta, P. 2017. Pre operative use of injection diclofenac versus injection tramadol for pain management of acute appendicitis in emergency department. Health Renaissance. 13, 1 (Aug. 2017), 40–48. DOI:https://doi.org/10.3126/hren.v13i1.17946.