Affiliation: | 1. Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium;2. Department of Physiotherapy, UZ Brussel, Brussels, Belgium;3. Department of Pediatrics, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium;4. Department of Public Health, Biostatistics and Medical Informatics, Information Research Group, Vrije Universiteit Brussel, Brussels, Belgium |