Affiliation: | 1. First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan;2. Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan;3. Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Japan;4. Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan |