1. Departamento de Patología, Clínica Ricardo Palma; Lima Peru
2. Departments of Dermatology and Pathology; University of Michigan Medical Center; Ann Arbor Michigan
3. Departments of Dermatology and Pathology; Saint Louis University School of Medicine; St. Louis Missouri
4. Departments of Dermatology and Pathology; Stanford University School of Medicine; Stanford California
5. Silver Falls Dermatology; Salem Oregon
6. Department of Pathology; Gundersen Health System; La Crosse Wisconsin