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STEPP of 5-year breast cancer-free interval (BCFI) in the HR+/HER2- population, according to level of progesterone receptor (PgR) expression, for each of the four cohorts defined by trial and chemotherapy use: (A) SOFT no chemotherapy; (B) TEXT no chemotherapy; (C) TEXT chemotherapy; (D) SOFT prior chemotherapy
Abbreviations: HR+=hormone receptor positive; STEPP=subpopulation treatment effect pattern plot
