title: Ibuprofen versus aspirin and placebo in the treatment of muscle contraction headache.
mesh_terms: D000328:Adult; D001241:Aspirin / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D007052:Ibuprofen / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000187:drug effects; D011897:Random Allocation
chemical_list: D001241:Aspirin; D007052:Ibuprofen