1. Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, USA
2. Dermatology Group of Arkansas, Little Rock, Arkansas, USA
3. Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
4. Department of Pathology and Laboratory Medicine and Department of Dermatology, University of Rochester Medical Center, 601 Elmwood Ave, Box 626, Rochester, New York, USA