1. Department of Pathology; University of Tennessee Graduate School of Medicine; Knoxville TN USA
2. Dermatology of Southern Kentucky; Somerset KY USA
3. Knoxville Dermatopathology Laboratory; Knoxville TN USA
4. Department of Pathology; University of Miami; Coral Gables FL USA
5. Department of Pathology; Vanderbilt University; Nashville TN USA