title: Insurance problems among patients with ankylosing spondylitis.
authors.forename: A
authors.initials: A
authors.lastname: Boonen
authors.forename: A
authors.initials: A
authors.lastname: van Tubergen
authors.forename: Sj
authors.initials: S
authors.lastname: van der Linden
mesh_terms: D005260:Female; D006801:Humans; D007348:Insurance, Health; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013167:Spondylitis, Ankylosing / Q000191:economics*; D011795:Surveys and Questionnaires