Brockow T, Cieza A, Kuhlow H, Sigl T, Franke T, Harder M, Stucki G.
Identifying the concepts contained in outcome measures of clinical trials on musculoskeletal disorders and chronic wide spread pain using the International Classification of Functioning, Disability and Health as a reference.
J Rehab Med 2004; 44 Suppl: 30-36.