AUTHOR=Deng Min , Qing Yun , Qiu Dan , Sheng Ya , Zhou Juan , Sun Lan TITLE=The prognostic value of pretreatment neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in patients with esophageal cancer undergoing immunotherapy: a systematic review and meta-analysis JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1536920 DOI=10.3389/fonc.2025.1536920 ISSN=2234-943X