CALLAGHAN, O H Isolation and properties of an allergen from dwar ragweed pollen. [electronic resource] - Journal of immunology (Baltimore, Md. : 1950) Nov 1962 - 612-22 p. digital Publication Type: Journal Article ISSN: 0022-1767 Subjects--Topical Terms: AllergensAntigensAntigens, PlantHumansPlant ExtractsPoaceaePollen