5Ramsay M A,Savege T M,Simpson B R,et al. Controlled sedation with alphaxalone-alphadolone. Br Med J,1974,22(3 ) :656.
6Koshy G, Nair S, Nokus EP. Propofol ersus midazolam and meperdine for conscious sedation in GI endscopy. Am J Gastroenterol, 2000,95 (6) : 1476-1479.
7Schwieler L, delbro DS, Engberg G, et al. The anesthetic agent propofot in teracts with GABA(B) leceptors: anelectrophysiologicad study in rat. Life Sci ,2003,72(24) :2793-2801.
8Wehrmann T, Kokabpick S, Lembcke B, et al. Efficacy and safety of intravenus propofl sedation during roution ERCP; aprospective, controlled study. Gastroin test Endosc, 1999,49 (6) :677-683.
9SH Ko,DC Kim,YJ Han,et al. Small-dose fentanyl:optimal time injection for blunting the circulatory responses to tracheal intubation. Anesth Aanlg, 1998,86 ( 3 ) : 658-661.
10NataliniG, Fassini P, Seramondi V, et al. Remifentanil vs. fentanyl during interventional rigid bronchoscopy, under general anaesthesia and spontaneous assisted ventilation. European Journal of Anaesthesiology,1999,16 (9) :218-222.
