6[4]Boulant J, Mathieu S, D' Amoto M, et al. Cholecystokinin in transient lower esophageal sphincter relaxation due to gastric distentionin humans. Gut, 1997,40:575
7[5]Labenz J,Blum AL,Bayerdorfer E,et al. Curing helicobacter pyloriin patients with duodenal ulcer may provoke reflux esophagitis.Gastroenterology, 1997.112:1142