Erickson, Patricia G.Patricia G.EricksonRiley, Diane M.Diane M.RileyProf. CHEUNG Yuet-WahO'Hare, Patrick A.Patrick A.O'Hare2018-04-202018-04-201997In Erickson, P. G., Riley, D. M., Cheung, Y. W., & O'Hare, P. A. (Eds.) (1997). Harm reduction: A new direction for drug policies and programs (pp. 3-14). Toronto: University of Toronto Press.9780802078056http://hdl.handle.net/20.500.11861/5073enBook Chapter