PASSENGER, R E A clinical evaluation of the prophylactic treatment of poison ivy dermatitis with an alum-precipitated pyridine extract of Rhus toxicodendron. [electronic resource] - The Journal of allergy - 270-4 p. digital Publication Type: Journal Article ISSN: 0021-8707 Standard No.: 10.1016/0021-8707(63)90029-7 doi Subjects--Topical Terms: Alum CompoundsDermatitis, ToxicodendronHumansPyridinesRhusToxicodendron