title: Measurement of specific and nonspecific IgG4 levels as diagnostic and prognostic tests for clinical allergy. AAAI Board of Directors.
mesh_terms: D000818:Animals; D015415:Biomarkers; D005189:False Positive Reactions; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis* / Q000628:therapy; D007074:Immunoglobulin G / Q000032:analysis*; D011379:Prognosis
chemical_list: D015415:Biomarkers; D007074:Immunoglobulin G