1. Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
2. Department of Rehabilitation Medicine Tokyo Women's Medical University Hospital Tokyo Japan
3. Department of Rehabilitation Medicine The Jikei University School of Medicine Tokyo Japan
4. Department of Research Heisei Medical Welfare Group Research Institute Tokyo Japan
5. Division of Policy Evaluation, Department of Health Policy, Research Institute National Center for Child Health and Development Tokyo Japan
6. Department of Nursing, Graduate School of Medicine Mie University Mie Japan
7. Department of Rehabilitation Medicine, Graduate School of Medicine Mie University Mie Japan