1. Department of Public Health, Slippery Rock University of Pennsylvania, Slippery Rock, PA, USA
2. Division of Social and Behavioral Sciences, University of Memphis, School of Public Health, Memphis, TN, USA
3. Division of Epidemiology and Biostatistics, University of Memphis, School of Public Health, Memphis, TN, USA
4. School of Communication Studies, Kent State University at Stark, North Canton, OH, USA