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Effects of intravesical BCG maintenance therapy duration on recurrence rate in high-risk non-muscle invasive bladder cancer (NMIBC): Systematic review and network meta-analysis according to EAU COVID-19 recommendations

Fig 5

Risk of bias for eight RCTs.

+, no bias;–, bias;?, bias unknown.

Fig 5

doi: https://doi.org/10.1371/journal.pone.0273733.g005