1. Department Medical Psychology and Medical Sociology, Faculty of Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
2. Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, 9052 Ghent, Belgium
3. Department of Physiotherapy, Faculty of Public Health, Antonine University, Baabda, Lebanon
4. Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW, Sydney 2052, Australia
5. ClimbAID Lebanon, Branch of ClimbAID, 8048 Zurich, Switzerland