1. Center for Dermatology Research; Department of Dermatology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
2. Department of Pathology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
3. Department of Public Health Sciences; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A