1. Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
2. Center for Worker Health, Wake Forest School of Medicine, Winston-Salem, NC, USA
3. Anthropology Department, Lawrence University, Appleton, Wisconsin, USA
4. North Carolina Farmworkers Project, Benson, NC, USA
5. Department of Family and Community Medicine, Meharry Medical College, Nashville, TN, USA
6. Department of Biostatistical Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
7. Department of Family and Community Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA