The separation of substances in timothy pollen extract producing allergic skin reactions from those producing hemagglutination reactions.
D000485:Allergens; D006384:Hemagglutination; D006801:Humans; D006967:Hypersensitivity; D031784:Phleum; D011058:Pollen
D000485:Allergens
ALLERGY/experimental; HEMAGGLUTINATION; POLLEN