1. Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
2. Division of Internal Medicine, Fukuoka Dental College
3. Department of Internal Medicine, Faculty of Medicine, Division of Nephrology and Rheumatology, Fukuoka University
4. Department of Epidemiology and Public Health, Graduate School of Medical Sciences Kyushu University
5. Department of Nephrology, Nara Medical University