title: Review of the past Paul Ehrlich seminars.
authors.forename: G
authors.initials: G
authors.lastname: Siefert
mesh_terms: D000485:Allergens / Q000592:standards*; D005060:Europe; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis / Q000628:therapy; D007391:International Cooperation; D014481:United States
chemical_list: D000485:Allergens