title: Late onset ankylosing spondylitis--a distinct disorder?
authors.forename: A
authors.initials: A
authors.lastname: Calin
authors.forename: J
authors.initials: J
authors.lastname: Elswood
authors.forename: L
authors.initials: L
authors.lastname: Edmunds
mesh_terms: D000328:Adult; D000375:Aging / Q000502:physiology*; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000503:physiopathology*; D011795:Surveys and Questionnaires