1. Department of Communication, University of Kentucky, 247 Grehan Building, Lexington, KY, 40506, USA
2. School of Communication, East Carolina University, 102 Joyner East, Greenville, NC, 27858, USA
3. National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, 4770 Buford Highway, Mailstop K65, Atlanta, GA, 30341-3724, USA