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2. Historical outline of attempts to classify skin diseases;Jackson;Can Med Assoc J,1977
3. Definitions in dermatology. A dissertation on some of the terms used to describe the living gross pathology of the human skin;Jackson;Clin Exp Dermatol,1978
4. Committee on Nomenclature, International League of Dermatological Societies. Glossary of basic dermatology lesions;Winkelman;Acta Derm Venereol (Stockh),1987