1. Division of Nephrology, Hypertension and EndocrinologyDepartment of Internal MedicineNihon University School of Medicine TokyoJapan
2. Division of Diabetes and Metabolic DiseasesDepartment of Internal MedicineNihon University School of Medicine TokyoJapan
3. Division of Gastroenterology and Hepatology Department of Internal Medicine Nihon University School of Medicine Tokyo Japan