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Table 3 Methodological quality of the studies included in the meta-analysis

From: Efficacy of adjuvant radiotherapy for treatment of adrenocortical carcinoma: a retrospective study and an updated meta-analysis

First authorRepresentativeness of the exposed cohortSelection of the unexposed cohortAscertainment of exposureOutcome of interest not present at start of studyControl for important factors or additional factorsOutcome assessmentFollow-up long enough for outcomes to occurAdequacy of follow-up of cohortsTotal quality score
Fassnacht-7
Habra-7
Sabolch-7
Srougi-7
Gharzai8
Zhu-7