RT Journal Article SR Electronic T1 Variability in withdrawal of life-sustaining therapies JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 326 OP 326 DO 10.1503/cmaj.112-2020 VO 184 IS 3 A1 Shemie, Sam D. A1 Fontela, Patricia S. YR 2012 UL http://www.cmaj.ca/content/184/3/326.1.abstract