AUTHOR=Tong Guojun , Li Hui , Shen Yan , Tan Zhenhua , Qian Hai 

TITLE=The combined evaluation of preoperative serum CEA and postoperative tissue CEA as a prognostic factor in stages 0–IV colorectal cancer: a retrospective cohort study

JOURNAL=Frontiers in Medicine

VOLUME=11

YEAR=2025

URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1447041

DOI=10.3389/fmed.2024.1447041

ISSN=2296-858X