1. Harvard T.H. Chan School of Public Health, Harvard University/Dana-Farber Cancer Institute , 375 Longwood Ave, Boston, MA 02215, USA
2. Institute of Health and Society, University of Oslo , Forskningsveien 3A, Oslo 0373, Norway
3. Annenberg School for Communication, University of Pennsylvania , 3620 Walnut Street, Philadelphia, PA 19104, USA
4. School of Nursing, University of Pennsylvania , 18 Curie Blvd, Philadelphia, PA 19104, USA
5. Netter Center for Community Partnerships, University of Pennsylvania , 3819-33 Chestnut St #120, Philadelphia, PA 19104, USA