a. Women with heterogeneously dense breasts receive biennial mammography from 50-74 years old, and women with extremely dense breasts receive biennial AP-MRI from 50-65 plus biennial mammography from 66-74 years old;

b. Women with heterogeneously dense breasts receive biennial mammography from 50-74, and women with extremely dense breasts receive biennial AP-MRI from 50-69 plus biennial mammography from 70-74 years old;

c. Women with heterogeneously dense breasts receive biennial mammography from 50-74, and women with extremely dense breasts receive biennial AP-MRI from 50-74 years old;

d. All women with dense breasts (heterogeneously and extremely dense breasts) receive biennial AP-MRI from 50-65 plus biennial mammography from 66-74 years old;

e. All women with dense breasts receive biennial AP-MRI from 50-69 plus biennial mammography from 70-74 years old;

f. All women with dense breasts receive biennial AP-MRI from 50-74 years old.