1. Center for Community Based Research, Division of Population Sciences, Dana-Farber Cancer Institute, Boston, Massachusetts
2. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
3. Department of Communication, College of Liberal Arts and Sciences, University of Illinois Urbana-Champaign, Urbana
4. College of Arts, Media and Design, Department of Communication Studies, Northeastern University, Boston, Massachusetts
5. College of Communication Arts and Science, Department of Advertising and Public Relations, Michigan State University, East Lansing