J. S. Chaudhari, A. R. Kubavat, V. R. Mistry, A. S. Pandya, S. C. Hotchandani, and B. S. Patel, “A drug utilization study of analgesics for management of postoperative pain in patients admitted at a tertiary care teaching hospital”, Int J Basic Clin Pharmacol, vol. 2, no. 6, pp. 757–762, Feb. 2017.