A. Dutta, MD, N. Sethi, DNB, P. Choudhary, MD, J. Sood, MD, B. C. Panday, MD, and P. T. Chugh, MSc, “The impact of preinduction fentanyl dosing strategy on postoperative nausea and vomiting in patients undergoing laparoscopic cholecystectomy”, J of Opioid Management, vol. 14, no. 4, pp. 283–293, Jul. 2018.