Affiliation: | 1. Division of Gastroenterology, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, 272-8516, Japan 2. Division of Gasteroenterology, Department of Internal Medicine, Jichi Medical University, Shimotsuke, Japan 3. Department of Gastroenterology, Dokkyo Medical University, Utsunomiya, Japan 4. Division of Cardiology, Department of Internal Medicine, Jichi Medical University, Shimotsuke, Japan 5. Department of Medicine (Cardiology), Tokai University, Isehara, Japan 6. Department of Neurology, Tokyo Women’s Medical University, Tokyo, Japan 7. Department of Cerebrovascular Disease, National Kyushu Medical Center, Fukuoka, Japan 8. Division of Biostatistics and Clinical Epidemiology, University of Toyama, Toyama, Japan 9. Faculty of Science and Engineering, Waseda University, Tokyo, Japan
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