1. Johns Hopkins Bloomberg School of Public Health, Center for Communication programs, Baltimore, MD, USA
2. Department of Prevention and Community Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
3. Health Communication Capacity Collaborative Project (HC3), Center for Communications Programs, Johns Hopkins Bloomberg School of Public Health, Mbabane, Swaziland
4. Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA