Published on in Vol 18 , No 8 (2016) :August

1 Department of Management Sciences , Tippie College of Business , The University of Iowa , Iowa City , IA , US
2 Interdisciplinary Graduate Program in Informatics , The University of Iowa , Iowa City , IA , US
3 Schroeder Institute for Tobacco Research and Policy Studies , Truth Initiative , Washington , DC , US
4 Department of Oncology , Georgetown University Medical Center / Cancer Prevention and Control Program , Lombardi Comprehensive Cancer Center , Washington , DC , US
5 Center for Statistical Sciences , Brown University , Providence , RI , US
6 Department of Health, Behavior, and Society , Bloomberg School of Public Health , Johns Hopkins University , Baltimore , MD , US