1. Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, Kyoto, Japan
2. Laboratory of Bioimaging and Cell Signaling, Kyoto University Graduate School of Biostudies, Kyoto, Japan
3. Department of Diabetes and Endocrinology, Osaka Red Cross Hospital, Osaka, Japan
4. Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan