1. Third Department of Internal Medicine, Faculty of Medicine, University of Tokyo
2. Fourth Department of Interal Medicine, Faculty of Medicine, University of Tokyo
3. Life Science Laboratories, Mitsui Toatsu Chemicals, Inc.
4. Department of Veterinary Physiology, Veterinary Medical Science, University of Tokyo
5. Second Department of Internal Medicine, Tokyo Women's Medical College
6. Institute for Diabetes Care and Research, Asahi Life Foundation