Geography of cigarette price promotions: Implications for retail environment surveillance and restriction
Lisa Henriksen, PhD1, Nina C. Schleicher, PhD1, Andrew Busey, BS2, Brett R. Loomis2 and Robert Lipton, PhD3
(1)Stanford University School of Medicine, Palo Alto, CA, (2)RTI International, Research Triangle Park, NC, (3)University of Michigan, Ann Arbor, MI
(1)Stanford University School of Medicine, Palo Alto, CA, (2)RTI International, Research Triangle Park, NC, (3)University of Michigan, Ann Arbor, MI