Cumulative incidence of advanced breast cancer in women aged 40-49 years in the Japan Strategic Anti-cancer Randomised Trial (J-START) of adjunctive ultrasonography: a prespecified secondary analysis.
Adjunctive Ultrasonography Reduces Advanced Breast Cancer Incidence in Women Aged 40–49 — Over a median follow-up exceeding 11 years, adding ultrasonography to mammography screening was associated with about a 17% lower risk of advanced breast cancer in women aged 40–49 compared with mammography alone (HR 0.