Fig. 2
OS before PSM. (a), stage I; (b), stage II; (c), stage III; (d), stage IV. Note: OS, overall survival; PSM, propensity score matching
Fig. 2 | BMC Cancer
OS before PSM. (a), stage I; (b), stage II; (c), stage III; (d), stage IV. Note: OS, overall survival; PSM, propensity score matching