title: Clinical investigation of allergic rhinitis and allied conditions.
mesh_terms: D000485:Allergens; D004777:Environment; D004804:Eosinophils; D005512:Food Hypersensitivity; D006632:Histamine; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D008688:Methacholine Compounds; D009296:Nasal Cavity / Q000473:pathology; D009298:Nasal Polyps / Q000175:diagnosis; D010256:Paranasal Sinuses / Q000473:pathology; D011852:Radioallergosorbent Test; D012221:Rhinitis, Allergic, Perennial / Q000175:diagnosis* / Q000209:etiology / Q000235:genetics / Q000276:immunology; D006255:Rhinitis, Allergic, Seasonal / Q000175:diagnosis* / Q000209:etiology / Q000235:genetics / Q000276:immunology; D012882:Skin Tests; D012959:Socioeconomic Factors
chemical_list: D000485:Allergens; D008688:Methacholine Compounds; D007073:Immunoglobulin E; D006632:Histamine