1. Faculty, Department of Dermatology, Hospital Universitario de La Princesa, Madrid, Spain;
2. Universidad Autónoma de Madrid, Madrid, Spain;
3. Faculty, Department of Pathology, Hospital Universitari General de Catalunya-Quirónsalud, Sant Cugat del Vallès, Barcelona, Spain;
4. Universitat International de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; and
5. Dermatology Department, Hospital San Pablo, Coquimbo, Chile.