1. Preventive Medicine Center, Saitama Medical University Hospital, Saitama 350-0495, Japan
2. Department of Rehabilitation Medicine, Saitama Medical University School of Medicine, Saitama 350-0495, Japan
3. Research Administration Center, Saitama Medical University, Saitama 350-0495, Japan
4. Department of Endocrinology and Diabetology, Saitama Medical University School of Medicine, Saitama 350-0495, Japan
5. Department of Respiratory Medicine, Saitama Medical University School of Medicine, Saitama 350-0495, Japan
6. Unicus-Kawagoe Preventive Medicine Center, Saitama 350-0495, Japan
7. Department of General Surgery, Saitama Medical University School of Medicine, Saitama 350-0495, Japan