1. Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
2. Institute of Public and Preventive Health, Augusta University, Augusta, Georgia, USA
3. Department of Family Medicine, Mercer University School of Medicine, Macon, Georgia, USA
4. Department of Internal Medicine, Mercer University School of Medicine, Macon, Georgia, USA
5. Department of Family Medicine, AnMed Health, Anderson, South Carolina, USA
6. Department of Family & Community Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA