1. Department of Dermatology; Nantes University Hospital; INSERM U892-CNRS U6299; CIC Biothérapie INSERM 0503; Nantes France
2. Department of Epidemiology and Biostatistics; Nantes University Hospital; INSERM U892-CNRS U6299; CIC Biothérapie INSERM 0503; Nantes France