LONE, A.; SHARMA, S.; OMMID, M.; NENGROO, S.; NAQASH, I. Evaluation of the efficacy of Granisetron over Droperidol in the prevention of Postoperative Nausea and Vomiting following open Cholecystectomy. JMS SKIMS, v. 14, n. 1, p. 11-14, 11 Jun. 2011.