title: What's in a name? Vaccine versus extracts.
authors.forename: I
authors.initials: I
authors.lastname: Finegold
mesh_terms: D000485:Allergens / Q000276:immunology; D006801:Humans; D006967:Hypersensitivity / Q000517:prevention & control* / Q000628:therapy; D007116:Immunization, Passive; D007167:Immunotherapy; D009626:Terminology as Topic; D014020:Tissue Extracts / Q000627:therapeutic use*; D014611:Vaccination; D014612:Vaccines / Q000627:therapeutic use*
chemical_list: D000485:Allergens; D014020:Tissue Extracts; D014612:Vaccines