5Gan TJ, Ginsberg B, Grant AP, et al. Double - blind randomized comparison of ondansetron and intvaoperative propofol to prevent postoperative nausea and Vomiting. Anesthesiology, 1996,85 (5) :1036.
6Roger Ls,Alan Ns,Joel K. Use and effi-cacv of low - dose Ketamine in the managemant of acute postoperative pain:a review of current techniaues and outcomes Pain. 1999.82 : 111 - 125.
