1. Institute for Health and Rehabilitation Sciences, Research Unit for Biopsychosocial Health, Ludwig-Maximilians-University (LMU), Munich, Germany
2. ICF Research Branch in cooperation with the WHO Collaborating Centre for the Family of International Classifications in Germany (at DIMDI)
3. Kempfenhausen Centre for Treatment of Multiple Sclerosis, Marianne-Strauß-Klinik, Berg, Germany
4. Department of Neurorehabilitation, Valens Rehabilitation Centre, Valens, Switzerland