1. Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
2. Department of Pediatrics, Japanese Red Cross Tokushima Hinomine Rehabilitation Center for People with Disabilities, Tokushima, Japan
3. Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
4. Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo, Hyogo, Japan