RT Journal Article SR Electronic T1 Overdose advice JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 958 OP 958 VO 168 IS 8 A1 Brubacher, Jeff A1 Purssell, Roy A1 Kent, Debra A. YR 2003 UL http://www.cmaj.ca/content/168/8/958.1.abstract