Recommendations on screening for breast cancer in women aged 40–74 years who are not at increased risk for breast cancer

[See related article at [www.cmaj.ca/lookup/doi/10.1503/cmaj.181538][2]][2] KEY POINTS Breast cancer mortality rates among Canadian women have declined from 41.7 per 100 000 in 1988 to an estimated 23.2 per 100 000 in 2017, while age-standardized incidence has remained relatively stable, at around