title: The "classical" diseases of allergy.
mesh_terms: D000328:Adult; D000485:Allergens; D002648:Child; D004342:Drug Hypersensitivity; D005512:Food Hypersensitivity; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis / Q000209:etiology / Q000276:immunology; D007073:Immunoglobulin E; D008407:Mast Cells; D011379:Prognosis; D011602:Psychophysiologic Disorders / Q000150:complications; D009626:Terminology as Topic
chemical_list: D000485:Allergens; D007073:Immunoglobulin E