RT Journal Article SR Electronic T1 Implantable cardioverter defibrillators work — so why aren't we using them? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 49 OP 51 DO 10.1503/cmaj.070470 VO 177 IS 1 A1 Christopher S. Simpson MD YR 2007 UL http://www.cmaj.ca/content/177/1/49.abstract