1. Department of Family Medicine, University of Kansas Medical Center, Kansas City, KS, USA
2. William Allen White School of Journalism and Mass Communications, University of Kansas, Lawrence, KS, USA
3. Department of Preventive Medicine and Public Health, University of Kansas Medical Center, Kansas City, KS, USA
4. Department of Surgery, Washington University, St. Louis, MO, USA
5. Department of Nutrition, School of Public Health, University of North Carolina Chapel Hill, NC, USA