1. Department of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Japan
2. Department of Occupational Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan
3. Sapporo Toho Hospital, Sapporo, Japan
4. Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
5. Japan Food Hygiene Association, Tokyo, Japan
6. Division of Sensory Integrative Dysfunction, Department of Occupational Therapy, Sapporo Medical University Graduate School of Health Sciences, Sapporo, Japan