Sangineni, K. S. D., Deolalkar, A., Parakh, S. C. and Rajuloo, D. D. (2016) “Double blind randomized comparative study of transdermal fentanyl patch for post operative pain relief in major abdominal surgery as a component of multimodal analgesic therapy”, International Journal of Basic & Clinical Pharmacology, 5(1), pp. 13–20. doi: 10.18203/2319-2003.ijbcp20160077.