1. Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
2. Graduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan
3. Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
4. Department of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan