“…By contrast, the use of a warning label alone resulted in smoking levels that did not differ from baseline. In other research, graphic warning labels have been shown to increase recall for the relevant warning (Strasser, Tang, Romer, Jepson, & Cappella, 2012), enhance knowledge of smoking risks (Borland & Hill, 1997), reduce the likelihood of former smokers lighting up again (Hammond, McDonald, Fong, Brown, & Cameron, 2004), discourage current smokers from wanting to smoke (Cameron, Pepper, & Brewer, 2013), and reduce cigarette use among active smokers (Willemsen, 2005). But efforts to implement such warnings in the United States are currently stalled, and the evidence to date suggests that less prominent text-only warnings found on U.S. cigarette packs are much less likely to produce any of the those effects (Hammond, 2011).…”