The ASAS/WHO ICF Core Sets for Ankylosing Spondylitis: how to classify the impact of AS...

Boonen A, Braun J, van der Horst-Bruinsma IE, Huang F, Maksymowych WP, Kostanjsek N Dr, Cieza A, Stucki G, van der Heijde DM.
The ASAS/WHO ICF Core Sets for Ankylosing Spondylitis: how to classify the impact of AS on functioning and health.
Ann Rheum Dis. 2010 Jan;69(1): 102-107. Abstract