1. Clinical Nursing Research Unit; Aalborg University Hospital; Aalborg Denmark
2. Department of Clinical Medicine; Aalborg University; Aalborg Denmark
3. Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics; University of Southern Denmark; Odense Denmark
4. Department of Physiotherapy and Occupational Therapy; Naestved-Slagelse-Ringsted Hospitals; Slagelse Denmark