Pyoderma gangrenosum (1ère partie) : mise au point Natacha Chariatte, Stella Lysitsa, Tommaso Lombardi and Jacky Samson Med Buccale Chir Buccale, 17 2 (2011) 121-131 Published online: 18 April 2011 DOI: 10.1051/mbcb/2011106