title: Two cases of severe musculoskeletal pain.
mesh_terms: D000328:Adult; D001416:Back Pain / Q000209:etiology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009141:Musculoskeletal System / Q000503:physiopathology; D010146:Pain / Q000209:etiology*; D010653:Phenylbutazone / Q000627:therapeutic use; D013167:Spondylitis, Ankylosing / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D013909:Thorax
chemical_list: D010653:Phenylbutazone