Affiliation: | 1. Division of Endoscopy and Ultrasonography, Department of Laboratory Medicine, Kawasaki Medical School, Kurashiki, Japan;2. Department of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan;3. Department of Health Care Medicine, Kawasaki Medical School, Kurashiki, Japan;4. Department of Health Care Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan |