1. Department of Preventive Medicine and Public Health, University of Kansas Medical Center, Kansas City, Kansas
2. Department of Preventive Medicine and Public Health, University of Kansas Medical Center, Kansas City, Kansas and Department of Family Medicine, University of Kansas Medical Center, Kansas City, Kansas
3. Department of Family Medicine, University of Kansas Medical Center, Kansas City, Kansas
4. Center for Public Health Practice, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
5. Department of Preventive Medicine and Public Health, University of Kansas Medical Center, Kansas City, Kansas, Department of Family Medicine, University of Kansas Medical Center, Kansas City, Kansas and Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas