title: Age at presentation with ankylosing spondylitis.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D000328:Adult; D000367:Age Factors; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000453:epidemiology*