1. Department of Dermatology; Nantes University Hospital; Nantes France
2. CIC, Inserm U892-CNRS 6299; Nantes France
3. L'Oréal Research and Innovation; Tours France
4. La Roche-Posay Dermatological Laboratories; Asnières France
5. Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder CO USA