title: Introductory paragraph.
mesh_terms: D001037:Aphasia / Q000209:etiology / Q000534:rehabilitation; D018771:Arthralgia / Q000209:etiology / Q000523:psychology / Q000534:rehabilitation*; D001259:Ataxia / Q000209:etiology / Q000534:rehabilitation; D003362:Cost-Benefit Analysis; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology*; D013119:Spinal Cord Injuries / Q000534:rehabilitation*; D020521:Stroke / Q000150:complications / Q000523:psychology; D000071939:Stroke Rehabilitation