1. Diabetes and Metabolic Disease Research Centre, Hidaka Hospital, Gunma, Japan
2. Henry Wellcome Centre for Gene Function, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford UK
3. Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Bratislava, Slovakia
4. Heisei Hidaka Clinic, Gunma, Japan
5. Gunma Prefectural College of Health Sciences, Gunma, Japan
6. Gumma PAZ College, Gunma, Japan