1. Center for Musculoskeletal Medicine and Rehabilitation, Military Hospital Queen Astrid, Rue Bruyn 1, 1120 Brussels, Belgium.
2. Faculty Medicine and Health Sciences, Department Rehabilitation Sciences and Physiotherapy, Ghent University, Campus Heymans (UZ Ghent), Building B3-Second Floor, De Pintelaan 185, 9000 Gent, Belgium.
3. Center for Aerospace Medicine, Military Hospital Queen Astrid, Rue Bruyn 1, 1120 Brussels, Belgium.
4. Université Catholique de Louvain, Institut de recherche clinique (IREC/CARS) Avenue Hippocrate, 55 bte B1.55.02, Woluwe-Saint-Lambert, 1200 Brussels, Belgium.
5. Department of Oral and Maxillofacial Surgery, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Avenue Hippocrate 10, Woluwe-Saint-Lambert, 1200 Brussels, Belgium.