Immunotherapy in ragweed hay fever.
D000818:Animals; D000941:Antigens; D003888:Desensitization, Immunologic; D006636:Histamine Release; D006801:Humans; D010936:Plant Extracts / Q000627:therapeutic use; D011058:Pollen; D011817:Rabbits; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D000941:Antigens; D010936:Plant Extracts