*Department of Medical Psychology and Sociology, Ruhr-University of Bochum, Germany
†Department of Orthopaedics, University Hospital of Gothenburg, Sweden
‡Division of Physiotherapy, Department of Health & Rehabilitation Sciences, University of Cape Town, South Africa
§School of Health, Care and Social Welfare Mälardalen University, Västerås, Sweden
∥Mill Park, Port Elizabeth, South Africa
¶Department of Rehabilitation Medicine, Maastricht University, Maastricht NL
#Centre for Pain Medicine, Swiss Paraplegic-Centre, Nottwil, Switzerland
**Department of Physical Therapy, School of Health Professions, University of Texas Health Science Center at San Antonio, TX
The authors declare no conflict of interest.
Reprints: Monika I. Hasenbring, PhD, Department of Medical Psychology and Medical Sociology, Faculty of Medicine, Ruhr-University of Bochum, Universitätsstr. 150, Bochum, Germany (e-mail: firstname.lastname@example.org).