title: Allergen immunotherapy: a practice parameter second update.
mesh_terms: D000485:Allergens / Q000008:administration & dosage / Q000627:therapeutic use* / Q000633:toxicity; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000628:therapy*; D007167:Immunotherapy / Q000592:standards / Q000639:trends; D018579:Patient Selection; D013997:Time Factors
chemical_list: D000485:Allergens