1. Division of Integrative Physiology, Department of Physiology; Jichi Medical University School of Medicine; Tochigi Japan
2. Department of Endocrinology and Metabolism; Jichi Medical University School of Medicine; Tochigi Japan
3. Department of Surgery; Jichi Medical University School of Medicine; Tochigi Japan
4. Department of Human Life and Environmental Science; Niigata Women's College; Niigata Japan
5. Department of Comprehensive Medicine, Omiya Medical Center; Jichi Medical University; Saitama Japan