Pacek LR, Joseph McClernon F, Denlinger-Apte RL, Mercincavage M, Strasser AA, Dermody SS, Vandrey R, Smith TT, Nardone N, Hatsukami DK, Koopmeiners JS, Kozink RV, Donny EC. Perceived nicotine content of reduced nicotine content cigarettes is a correlate of perceived health risks. Tob Control. 2018 07; 27(4):420-426.