Demonstration of acid secretion from esophageal mucosa in Barrett's ulcer.
D000328:Adult; D004935:Esophageal Diseases / Q000209:etiology / Q000503:physiopathology*; D004942:Esophagitis, Peptic / Q000209:etiology / Q000503:physiopathology; D004947:Esophagus / Q000503:physiopathology*; D005750:Gastric Juice / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009092:Mucous Membrane / Q000503:physiopathology; D014456:Ulcer