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. 2020 Feb;32(1):26–35. doi: 10.21147/j.issn.1000-9604.2020.01.04

S1. Guidelines for breast cancer screening from American Cancer Society.

Years 40−49 years old ≥50 years old References
1977 If women themselves, or their mothers or sisters, had breast cancer Annual screening (24). Cancer 1993;72:1429-32.
1983 Screening with intervals of 1−2 years Annual screening (25). CA Cancer J Clin 1983;33:255.
1994 Screening with intervals of 1−2 years Annual screening as long as a woman is in good health (26). CA Cancer J Clin 1994;44:248-55.
1997 Annual screening Annual screening as long as a woman is in good health (27). CA Cancer J Clin 1997;47:150-3.
2003 Annual screening Annual screening as long as a woman is in good health (28). CA Cancer J Clin 2003;53:141-69.
2015 40−44 years old: should have the opportunity to begin annual screening;45−49 years old: annual screening 50−54 years old: annual screening;≥55 years old: biennial screening or have the opportunity to continue screening annually as long as their overall health is good and they have a life expectancy of 10 years or longer (29). JAMA 2015;314:1599-614.