1. Department of Endocrinology and Metabolism, Tokyo Medical and Dental University, Tokyo, Japan
2. RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama, Japan
3. Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan
4. Department of Pediatrics, Musashino Red Cross Hospital, Musashino-city, Tokyo, Japan
5. LE Development Department, R&D Division, Medical Business Unit, Imaging Products & Solutions Sector, Sony Corporation, Tokyo, Japan