RT Journal Article SR Electronic T1 Reading electrocardiograms JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1139 OP 1139 DO 10.1503/cmaj.081783 VO 180 IS 11 A1 Neilson, Shane YR 2009 UL http://www.cmaj.ca/content/180/11/1139.1.abstract