Search Strategy
A systematic search in PubMed, Medline, SCOPUS, Web of Science Core Collection, EMBASE, and Google Scholar databases was carried out to find the records from inception to 30 April 2023. Using the keywords including RDW, red blood cell distribution width, DLBCL, diffuse large B-cell lymphoma, lymphoma diffuse, large B-cell, fibrin fragment D, D-dimer, D-dimer fibrin, and D-dimer fragments, two researchers (KR and RS) searched in the mentioned databases separately and blindly. Inconsistencies in some articles were also solved by other researchers (NAN, MR, MF and NK). Finally, duplicates were identified by title of the papers, authors’ names, and journals’ names.