1. Division of Metabolism (H.N., T.T., M.T.), Chiba Children’s Hospital, Chiba 266-0007, Japan
2. Division of Clinical Preventive Medicine (T.M.), Niigata University, Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
3. Department of Cardiovascular Medicine (K.H., A.O.), Kyoto University, Graduate School of Medicine, Kyoto 606-8507, Japan
4. Osaka University, Graduate School of Medicine, and Department of Pediatrics (T.Y.), Kyoto University, Graduate School of Medicine, Kyoto 606-8507, Japan
5. Department of Pediatrics (H.T.), Fukui University, Graduate School of Medicine, Fukui 910-1193, Japan
6. Departments of Clinical Laboratory Medicine (H.C., S.-P.H.), Hokkaido University, Graduate School of Medicine, Sapporo 060-8638, Japan
7. Hokkaido University Hospital, and Department of Pediatrics (K.K.), Hokkaido University, Graduate School of Medicine, Sapporo 060-8638, Japan