Awareness and impact of New York City's graphic point-of-sale tobacco health warning signs
Micaela H Coady, Christina A Chan, Kari Auer, Shannon M Farley, Elizabeth A Kilgore, Susan M Kansagra
Tobacco Control May 2013, 22 (e1) e51-e56; DOI: 10.1136/tobaccocontrol-2011-050261