RT Journal Article SR Electronic T1 Applying the 2011 Canadian guidelines for breast cancer screening in practice JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1803 OP 1807 DO 10.1503/cmaj.120392 VO 184 IS 16 A1 Ellen Warner A1 Ruth Heisey A1 June C. Carroll YR 2012 UL http://www.cmaj.ca/content/184/16/1803.abstract