1. Department of Pediatrics; Akita University Graduate School of Medicine; Akita City Akita Japan
2. Department of Pediatrics; Kumamoto University Hospital; Kumamoto City Kumamoto Japan
3. Department of Metabolism; Chiba Children's Hospital; Chiba City Chiba Japan
4. Department of Pediatrics; Chiba University Hospital; Chiba City Chiba Japan
5. Department of Pediatrics; National Hospital Organization Maizuru Medical Center; Maizuru City Kyoto Japan
6. Department of Pediatrics; Yokosuka Kyosai Hospital; Yokosuka City Kanagawa Japan
7. Division of Emergency and General Medicine; Chiba Children's Hospital; Chiba City Chiba Japan
8. National Center for Child Health and Development; Center of Lysosomal storage diseases; Setagaya Tokyo Japan
9. Morioka Children's Hospital; Morioka City Iwate Japan
10. Sakura Pediatric Clinics; Akita City Akita Japan