6Eger E Ⅱ. New inhaled anesthetics. Anesthesiology,1994,80:906-922.
7Stein J H, DeMeester TR, Naspetti R, et al. Three-dimensional imaging of the lower esophageal sphincter in gastresophageal reflux disease. Ann Surg, 1991,214: 374-384.
8Bombeek CT, Vaz O, DeSalvo J, et al. Computerized axial manometry of the esophagus. Ann Surg, 1987,206 : 465-472.
9Hashim MA,Waterman AE, Pearson H. Comparison of the effects of halothane and isoflurane in combination with nitrous oxide on lower esophageal sphincter pressure and barrier pressure in anaesthetized dogs. Vet Rec, 1995,137:658-661.
10Baun VC,Yemen TA, Baun LD. Immediate 8% sevoflurane induction in children conparison with incremental sevoflurane and incremental halothane. Anesth Analg,1997,85:313.
