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Cumulative incidence of a disease-free survival (DFS) event and death for patients with hormone receptor–positive disease and tumors ≤ 2 cm. (A) DFS event among all 2,263 patients; (B) overall survival (OS) event among all 2,263 patients; (C) DFS event among 1,092 patients with ≤ one positive lymph node; (D) OS event among 1,092 patients with ≤ one positive lymph node. Hazard ratios come from fixed effects model stratified by study.
