title: In vivo methods of standardization.
mesh_terms: D000485:Allergens / Q000145:classification / Q000592:standards*; D004306:Dose-Response Relationship, Immunologic; D004890:Erythema / Q000276:immunology; D005069:Evaluation Studies as Topic; D006801:Humans; D007428:Intradermal Tests / Q000379:methods; D008722:Methods; D012015:Reference Standards
chemical_list: D000485:Allergens