Boynton MH, Agans RP, Bowling JM, Brewer NT, Sutfin EL, Goldstein AO, Noar SM, Ribisl KM. Understanding how perceptions of tobacco constituents and the FDA relate to effective and credible tobacco risk messaging: A national phone survey of U.S. adults, 2014-2015. BMC Public Health. 2016 06 23; 16:516.