1. Department of Psychology and Medical Sciences, Institute for Sports Medicine, Alpine Medicine and Health Tourism, UMIT University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
2. Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
3. Physiotherm, Thaur, Austria
4. Group Practice For General Medicine and Natural Remedies, München, Germany
5. Department of Internal Medicine I, Medical University of Innsbruck, Innsbruck, Austria
6. Institute for Physical Medicine and Rehabilitation, University Hospital Innsbruck, Innsbruck, Austria and UMIT – University for Health Sciences, Medical Informatics and Technology, Research Unit for Orthopaedic Physiotherapy, Hall in Tirol, Austria