Schwarzkopf SR, Ewert T, Dreinhöfer KE, Cieza A, Stucki G.
Towards an ICF Core Set for chronic musculoskeletal conditions: commonalities across ICF Core Sets for osteoarthritis, rheumatoid arthritis, osteoporosis, low back pain and chronic widespread pain.
Clin Rheumatol. 2008 Nov;27(11):1355-61. Abstract