Warning Labels Smokers’ reactions to cigarette package warnings with graphic imagery and with only text: A comparison of Mexico and Canada James F. Thrasher, PhD a,b David Hammond, PhD c Geoffrey T. Fong, PhD d Edna Arillo-Santillán b a Department of Health Promotion, Education & Behavior b Department of Tobacco Research, Mexican National Institute of Public Health c Department of Health Studies and Gerontology, University of Waterloo d Department of Psychology, University of Waterloo Corresponding Author: James F. Thrasher, PhD Department of Health Promotion, Education & Behavior 800 Sumter Street, Room #215 Columbia, SC 29208 Phone: 803-777-7096 Fax: 803-777-6290 email: thrasher@gwm.sc.edu 1