The impact of nicotine dose assignment on affect and depression during extended exposure to experimental Spectrum cigarettes: Findings from CENIC Project 1 Study 1. (1st November 2015) - Pacek, Lauren R.; Vandrey, Ryan; Tidey, Jennifer W.; Drobes, David J.; Koopmeiners, Joseph; Umbricht, Annie; Hatsukami, Dorothy; Donny, Eric