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3. Occupational dermatitis in a 10-year material;Fregert;Contact Dermatitis,1975
4. Epidemiology of contact dermatitis;Fregert;Transactions of the St. John's Hospital Dermatological Society,1969
5. Leaching of nickel from stainless steel consumer commodities;Katz;Acta Dermato-venereologica,1975