1. Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
2. Center for Rehabilitation in Global Health Systems, WHO Collaborating Center, University of Lucerne, Lucerne, Switzerland
3. Ageing, Functioning Epidemiology and Implementation, Swiss Paraplegic Research, Nottwil, Switzerland
4. Undersecretariat of Public Health, Chilean Ministry of Health, Santiago de Chile, Chile