The use of alum precipitated pyridine pollen extract in the treatment of ragweed pollinosis.
D000293:Adolescent; D011232:Chemical Precipitation; D002648:Child; D002675:Child, Preschool; D003888:Desensitization, Immunologic; D006801:Humans; D011058:Pollen; D011725:Pyridines; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D011725:Pyridines