RT Journal Article SR Electronic T1 What's killing and maiming Canada's youth? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 737 OP 737 DO 10.1503/cmaj.070172 VO 176 IS 6 A1 Noni MacDonald A1 Natalie Yanchar A1 Paul C. Hébert YR 2007 UL http://www.cmaj.ca/content/176/6/737.abstract