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2. Atopic sensitivity to algae and lichens;Champion;British Journal of Dermatology,1971
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4. Contact allergy to atranorin in lichens and perfumes;Dahlquist;Contact Dermatitis 6,1980
5. Airborne contact dermatitis from Compositae oleoresins simulating photodermatitis;Hjorth;British Journal of Dermatology,1976