RT Journal Article SR Electronic T1 The authors respond JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1926 OP 1927 DO 10.1503/cmaj.112-2085 VO 184 IS 17 A1 Joanne M. Langley A1 Shelly McNeil YR 2012 UL http://www.cmaj.ca/content/184/17/1926.4.abstract