RT Journal Article SR Electronic T1 Electronic control devices JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 342 OP 343 DO 10.1503/cmaj.1080079 VO 179 IS 4 A1 Kroll, Mark W. A1 Calkins, Hugh A1 Luceri, Richard M. A1 Graham, Michael A. A1 Heegaard, William G. YR 2008 UL http://www.cmaj.ca/content/179/4/342.3.abstract