RT Journal Article SR Electronic T1 Cross-Canada colorectal cancer screening programs remain elusive JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 555 OP 556 DO 10.1503/cmaj.071127 VO 177 IS 6 A1 Lett, Dan YR 2007 UL http://www.cmaj.ca/content/177/6/555.abstract