1. Department of Dermatology; Bichat Hospital; HUPNVS; AP-HP; Paris 7 University; Paris France
2. Department of Pathology; Bichat Hospital; HUPNVS; AP-HP; Paris France
3. Department of Dermatology; Rothschild Hospital; AP-HP; Paris France
4. Synchrotron SOLEIL; Gif-sur-Yvette France
5. LCMCP-UPMC; College de France; Paris France