1. Dermatology Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California2Pigmented Lesion and Melanoma Program, Department of Dermatology, Stanford University Medical Center and Cancer Institute, Stanford, California
2. Pathology Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
3. Pigmented Lesion and Melanoma Program, Department of Dermatology, Stanford University Medical Center and Cancer Institute, Stanford, California4Dermatopathology Section, Department of Pathology, Stanford University Medical Center, Stanford, California