Chaparro Gómez, L. E.; Rivera, M. F.; Gallo, T.; González, N. J. Haloperidol Plus Dexamethasone Versus Dexamethasone Alone to Prevent Postoperative Nausea and Vomiting in Patients Undergoing Ambulatory Surgery: A Randomized, Controlled and Double-Blind Study. Iatreia 2008, 21, pág. S-10.