title: Immunological evidence of two forms of allergy to pyrazolone drugs.
mesh_terms: D000368:Aged; D003875:Drug Eruptions; D004342:Drug Hypersensitivity / Q000276:immunology*; D005260:Female; D005334:Fever / Q000139:chemically induced; D006636:Histamine Release / Q000187:drug effects; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D008198:Lymph Nodes / Q000473:pathology; D008214:Lymphocytes / Q000187:drug effects; D008875:Middle Aged; D010113:Oxyphenbutazone / Q000008:administration & dosage / Q000009:adverse effects*; D010653:Phenylbutazone / Q000008:administration & dosage / Q000009:adverse effects*; D012882:Skin Tests; D014581:Urticaria / Q000139:chemically induced
chemical_list: D007073:Immunoglobulin E; D010653:Phenylbutazone; D010113:Oxyphenbutazone