1. Department of Rheumatology and Immunology, University Hospital (Inselspital), and University of Bern, Bern, Switzerland
2. Department of Orthopaedic, Plastic and Hand Surgery, Hand Therapy Research Unit, University Hospital (Inselspital) and University of Bern, Bern, Switzerland
3. Institute of Occupational Therapy, School of Health Professions, ZHAW Zürich University of Applied Sciences, Winterthur, Switzerland