SYSTEMATIC REVIEWAccepted on 22 Oct 2025Prognostic value of platelet to lymphocyte ratio in patients with colorectal cancer undergoing chemotherapy: a systematic review and meta-analysisYan Fang LiZhou JuanJuan ZhouShaohua LiYanru ShiDi ChenXuehui Hudoi 10.3389/fimmu.2025.1642181