Lichen plan buccal : histoire naturelle et transformation maligne Stella Lysitsa, Seeman Abi Najm, Tommaso Lombardi and Jacky Samson Med Buccale Chir Buccale, 13 1 (2007) 19-29 Published online: 18 November 2009 DOI: 10.1051/mbcb/2007001