TY - JOUR T1 - Recommendations on screening for breast cancer in average-risk women aged 40–74 years JF - Canadian Medical Association Journal JO - CMAJ SP - 1991 LP - 2001 DO - 10.1503/cmaj.110334 VL - 183 IS - 17 AU - The Canadian Task Force on Preventive Health Care Y1 - 2011/11/22 UR - http://www.cmaj.ca/content/183/17/1991.abstract ER -