Fig. 6From: Comparative analysis of the prognosis of external beam radiation therapy (EBRT) and EBRT plus brachytherapy for glioblastoma multiforme: a SEER population-based studyEvaluation of the balance of the clinical characteristics of the two groups after PSM. A Change of density map before and after PSM. B Change of SMD before and after PSM. SMD standardized mean differenceBack to article page