Tolley ER, Lewinter C, Pedersen LM, Nielsen TH. Efficacy of intravenous high-dose methotrexate in preventing relapse to the central nervous system in R-CHOP(-like)-treated, high-risk, diffuse large B-cell lymphoma patients and its effect on mortality: a systematic review and meta-analysis. Haematologica; https://doi.org/10.3324/haematol.2023.284281 [Early view].