title: Invited commentary.
authors.affiliation: Department of Research and Development, Spenshult Hospital for Rheumatic Diseases, Halmstad, Sweden.
authors.forename: Carina A
authors.initials: CA
authors.lastname: Thorstensson
mesh_terms: D015438:Health Behavior; D006801:Humans; D009042:Motivation; D010045:Outpatients / Q000523:psychology; D010349:Patient Compliance / Q000523:psychology*; D010352:Patient Dropouts / Q000523:psychology; D026741:Physical Therapy Modalities / Q000706:statistics & numerical data*; D011369:Professional-Patient Relations