title: Rules and regulations for the production of allergenic extracts: past, present, future.
mesh_terms: D000485:Allergens; D000486:Allergy and Immunology / Q000266:history / Q000639:trends; D005060:Europe; D005860:Germany, West; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans; D007880:Legislation, Drug / Q000266:history; D010602:Pharmacopoeias as Topic; D006255:Rhinitis, Allergic, Seasonal / Q000266:history; D014020:Tissue Extracts / Q000276:immunology; D014481:United States; D014486:United States Food and Drug Administration / Q000266:history
chemical_list: D000485:Allergens; D014020:Tissue Extracts