Published on in Vol 17 , No 9 (2015) :September

1 Center for Health Behavior Research , Perelman School of Medicine , University of Pennsylvania , Philadelphia , PA , US
2 Center for Health Communication , Moody College of Communication , University of Texas , Austin , TX , US
3 Center for Digital Health and Wellness , Department of Health Education and Behavior , University of Florida , Gainesville , FL , US
4 Department of Global and Community Health , George Mason University , Fairfax , VA , US
5 Department of Public Health , University of Southern Mississippi , Hattiesburg , MS , US
6 School of Human Development and Organizational Studies in Education , University of Florida , Gainesville , FL , US