1. Department of Health Care and Child Development, Saitama Children’s Medical Center, Saitama, Japan
2. Master Course of Health Sciences, Department of Physical Therapy, Graduate School, Sapporo Medical University, Sapporo, Japan
3. Division of Rehabilitation Medicine, Hokkaido Medical Center for Child Health and Rehabilitation, Sapporo, Japan
4. Department of First Division of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan