Mattsson, U In reply to the short communication "Malignant transformation of oral lichen planus" by A. Larsson and G. Warfvinge in Oral Oncology 39 (2003) 630-1. [electronic resource] - Oral oncology Jul 2004 - 649-50 p. digital Publication Type: Comment; Letter ISSN: 1368-8375 Standard No.: 10.1016/j.oraloncology.2003.11.002 doi Subjects--Topical Terms: BiopsyDisease ProgressionHumansLichen Planus, Oral--pathologyMouth Neoplasms--pathology