RT Journal Article SR Electronic T1 Safety institutes urge better bar-coding of drugs JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E237 OP E238 DO 10.1503/cmaj.109-3182 VO 182 IS 5 A1 Brittany Hinds YR 2010 UL http://www.cmaj.ca/content/182/5/E237.abstract