Which aspects of functioning are relevant for patients with ankylosing spondylitis: results of focus group interviews

Boonen A, van Berkel M, Cieza A, Stucki G, van der Heijde D. Which aspects of functioning are relevant for patients with ankylosing spondylitis: results of focus group interviews. J Rheumatol. 2009; 36(11): 2501-2511. Abstract.