RT Journal Article SR Electronic T1 Heart-Alert: emergency resuscitation training in the community JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1399 OP 1403 VO 117 IS 12 A1 W. A. Tweed A1 E. Wilson YR 1977 UL http://www.cmaj.ca/content/117/12/1399.abstract