RT Journal Article SR Electronic T1 Drug access among homeless men in Toronto JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1021 OP 1021 VO 160 IS 7 A1 Hwang, S. W. A1 Gottlieb, J. L. YR 1999 UL http://www.cmaj.ca/content/160/7/1021.abstract AB