RT Journal Article SR Electronic T1 Colon cancer screening JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 975 OP 976 DO 10.1503/cmaj.1060024 VO 174 IS 7 A1 Steven Heitman A1 Braden Manns A1 Robert Hilsden A1 Josesph Romagnuolo YR 2006 UL http://www.cmaj.ca/content/174/7/975.3.abstract