PuffEM: An E-cigarette Sleeve for Estimating User Nicotine Intake. - Yiyang Wang; Rishabh Goel; Sheraz Hassan; Taegen J. Doscher; Shilin Wang; Lexington Allen Whalen; Aditya S. Gandhi; Yaman Sangar; Alex Cabral; Xuhai Xu; Josiah D. Hester; Alexander Travis Adams (CHASE, 2025)