Figure 2

(A) Kaplan–Meier curve of OS before PSM; (B) Kaplan–Meier curve of CSS before PSM; (C) Kaplan–Meier curve of OS after PSM; (D) Kaplan–Meier curve of CSS after PSM.
(A) Kaplan–Meier curve of OS before PSM; (B) Kaplan–Meier curve of CSS before PSM; (C) Kaplan–Meier curve of OS after PSM; (D) Kaplan–Meier curve of CSS after PSM.