RT Journal Article SR Electronic T1 Sharpening the point JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 203 OP 203-a DO 10.1503/cmaj.051694 VO 174 IS 2 A1 Anne Marie Todkill YR 2006 UL http://www.cmaj.ca/content/174/2/203.2.abstract