1 Center for Dermatology Research, Department of Dermatology, Wake Forest School of Medicine, 1 Medical Center Boulevard, Winston-Salem, NC 27157-1071, USA.
2 Center for Dermatology Research, Department of Dermatology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
3 Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
4 Department of Social Sciences & Health Policy, Wake Forest School of Medicine, Winston-Salem, NC, USA.
5 Department of Dermatology, University of Southern Denmark, Odense, Denmark.