1. Department of Dermatology; Hospital Nacional Hipólito Unanue Lima; Lima Peru
2. Department of Dermatology; University Hospital of Salamanca; Salamanca Spain
3. Institute of Clinical Research; Universidad Nacional Mayor de San Marcos Lima; Lima Peru
4. Department of Pathology; Hospital Nacional Hipólito Unanue Lima; Lima Peru
5. Department of Pathology; University Hospital of Salamanca; Salamanca Spain