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2. Berufeczeme Durch Proteine;Hjorth;Zeitschrift für Hautkrankheiten,1975
3. Occupational Protein contact dermatitis in food handlers;Hjorth;Contact Dermatitis,1976
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5. De danske Dyrlaegers Erhvervssygdomme;Thomsen;Medlemsblad for Den Danske Dyrlageforening,1938