1. Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues; Departments of Dermatology; University of Chile and Pontifical Catholic University of Chile; Santiago Chile
2. Department of Dermatology; Zealand University Hospital; Roskilde
3. Health Sciences Faculty; University of Copenhagen; Copenhagen Denmark
4. Dermatology Department, Edouard Herriot Hospital; Lyon 1 Claude Bernard University; Lyon France