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Bornstein, Michael M; Kalas, Lucie; Lemp, Sandra; Altermatt, Hans Jörg; Rees, Terry D; Buser, Daniel (2006). Oral lichen planus and malignant transformation: a retrospective follow-up study of clinical and histopathologic data. Quintessence international, 37(4), pp. 261-71. Berlin: Quintessenz Verlags-GmbH
