title: A double-blind cross-over trial of indomethacin, fenoprofen and placebo in ankylosing spondylitis, with comments on patient assessment.
mesh_terms: D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005279:Fenoprofen / Q000627:therapeutic use*; D006801:Humans; D007213:Indomethacin / Q000627:therapeutic use*; D010666:Phenylpropionates / Q000627:therapeutic use*; D010919:Placebos / Q000627:therapeutic use; D013167:Spondylitis, Ankylosing / Q000188:drug therapy*
chemical_list: D010666:Phenylpropionates; D010919:Placebos; D005279:Fenoprofen; D007213:Indomethacin