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Coenen, Michaela, Alarcos Cieza, Tanja A. Stamm, Edda Amann, Barbara Kollerits, ja Gerold Stucki. Validation of the International Classification of Functioning, Disability and Health (ICF) Core Set for Rheumatoid Arthritis From the Patient Perspective Using Focus Groups. BioMed Central, 2006.

Coenen, Michaela, et al. Validation of the International Classification of Functioning, Disability and Health (ICF) Core Set for Rheumatoid Arthritis From the Patient Perspective Using Focus Groups. BioMed Central, 2006.