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. 2021 Mar 12;2021(3):CD013316. doi: 10.1002/14651858.CD013316.pub2

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Copyright © 2021 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Hazard ratios from of studies involving other techniques not included in previous forest plots.

CI: confidence interval; CpG: 5'‐cytosine‐phosphate‐guanine‐3'; DIF: double immunofluorescence; FFPE: formalin‐fixed paraffin embedded; HR: hazard ratio; IHC: immunohistochemistry; MS‐RE‐qPCR: methylation‐specific restriction enzyme quantitative polymerase chain reaction; MSP: methylation‐specific polymerase chain reaction; PSQ: pyrosequencing; QF‐IHC: quantitative fluorescence immunohistochemistry; qMSP‐PSQ: quantitative methylation‐specific polymerase chain reaction; NR: not reported; N/A: not applicable; RoB: risk of bias; sel. rep.: selective reporting.