title: Allergen immunotherapy in historical perspective.
authors.affiliation: National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Sheldon G
authors.initials: SG
authors.lastname: Cohen
authors.forename: Richard
authors.initials: R
authors.lastname: Evans
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000266:history; D002986:Clinical Trials as Topic / Q000266:history; D003888:Desensitization, Immunologic / Q000266:history*; D049690:History, Ancient; D049711:History, Modern 1601-; D006801:Humans; D006967:Hypersensitivity / Q000266:history / Q000276:immunology / Q000628:therapy; D007109:Immunity / Q000276:immunology; D007299:Insect Bites and Stings / Q000266:history / Q000276:immunology / Q000628:therapy
chemical_list: D001428:Bacterial Vaccines