Google Scholardoi.org“Smart” harm reduction vending machines to improve public health: evaluating the demand and utilizationSSRN Electronic Journal·2026A. Q. Zhang, J. Diarmuid Murphy, Paul Griffin, Marcia Goodman-Hinnershitz, CASEY PINTO, Sarah M. Ballard, Patricia S. Grigson, Sarah Kawasaki, Wen-Jan Tuan, Aleksandra Zgierska