TY - JOUR T1 - Breast cancer guidelines JF - Canadian Medical Association Journal JO - CMAJ SP - 921 LP - 922 DO - 10.1503/cmaj.112-2041 VL - 184 IS - 8 AU - Gregory Doyle Y1 - 2012/05/15 UR - http://www.cmaj.ca/content/184/8/921.2.abstract ER -