RT Journal Article SR Electronic T1 Wise guidance and its challenges: the new Canadian recommendations on breast cancer screening JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1432 OP E1433 DO 10.1503/cmaj.181538 VO 190 IS 49 A1 Deborah Korenstein YR 2018 UL http://www.cmaj.ca/content/190/49/E1432.abstract AB