1. Department of Health, LUNEX, Differdange, Luxembourg
2. Luxembourg Health & Sport Sciences Research Institute Asbl, Differdange, Luxembourg
3. Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
4. Physiotherapy Department, Rehabilitation Center Monte Argentario, Monte Argentario, Italy
5. American Academy of Manipulative Therapy Fellowship in Orthopaedic Manual Physical Therapy, Montgomery, AL, USA
6. Montgomery Osteopractic Physical Therapy & Acupuncture Clinic, Montgomery, AL, USA
7. Department of Physical Therapy, Poliambulatorio Physio Power, Brescia, Italy
8. Sovrintendenza Sanitaria Regionale Puglia INAIL, Bari, Italy
9. Healthy Ageing Research Group, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands
10. Faculty of Medicine and Health Sciences, School of Health Sciences, University of Nottingham, Nottingham, UK
11. Department of Occupation and Health, School of Organisation and Development, HAN University of Applied Sciences, Nijmegen, the Netherlands