1. Department of Rehabilitation Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
2. Health Services and Clinical Care Unit, Swiss Paraplegic Research, Nottwil, Switzerland
3. Department of Medical Services, Ministry of Health, Sirindhorn National Medical Rehabilitation Institute, Nonthaburi, Thailand
4. Department of Rehabilitation Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
5. Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
6. Center of Primary and Community Care, University of Lucerne, Lucerne, Switzerland