title: Ankylosing spondylitis: genetics versus environment.
mesh_terms: D000328:Adult; D016918:Arthritis, Reactive / Q000209:etiology; D005260:Female; D006801:Humans; D007213:Indomethacin / Q000627:therapeutic use; D008297:Male; D013167:Spondylitis, Ankylosing / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*
chemical_list: D007213:Indomethacin