1. Department of Epidemiology and Prevention, Division of Public Health Sciences; Wake Forest School of Medicine; Winston-Salem North Carolina
2. Department of Biostatistical Sciences, Division of Public Health Sciences; Wake Forest School of Medicine; Winston-Salem North Carolina
3. Department of Dermatology; Wake Forest School of Medicine; Winston-Salem North Carolina
4. Department of Family and Community Medicine; Wake Forest School of Medicine; Winston-Salem North Carolina