Department of Internal Medicine;
Hallym University College of Medicine;
Chuncheon 200-704;
South Korea;
Department of Biology;
Stanford University;
Stanford;
CA 94305;
United States;
Department of Internal Medicine;
Yonsei University Wonju College of Medicine;
Wonju 220-786;
South Korea;
Chronic; kidney; diseases; Gastrointestinal; hemorrhage; Endoscopy; Peptic; ulcer; Alcoholics;