Rauch A, Cieza A, Boonen A, Ewert T, Stucki G. Identification of similarities and differences in functioning in persons with rheumatoid arthritis and ankylosing spondylitis using the International Classification of Functioning, Disability and Health (ICF). Clin Exp Rheumatol. 2009; 27(4 Suppl 55): S92-101. Abstract.
