1. Department of Rehabilitation Medicine, Third Faculty of Medicine, Charles University, Prague, Czech Republic
2. Department of Anatomy, Third Faculty of Medicine, Charles University, Prague, Czech Republic
3. Institute of Physiotherapy and Selected Medical Disciplines, Faculty of Health and Social Studies, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
4. MediCentrum JONA Ltd., Prague, Czech Republic
5. Department of Rehabilitation Medicine, University Hospital Kralovske Vinohrady, Prague, Czech Republic
6. Centre of Scientific Information, Third Faculty of Medicine, Charles University, Prague, Czech Republic
7. Department of Epidemiology and Biostatistics, Third Faculty of Medicine, Charles University, Prague, Czech Republic