AUTHOR=Zheng Yichen , Guo Jiamin , Ren Tonghui , Ma Ji , Cao Dan 

TITLE=Efficacy and safety of immune checkpoint inhibitors in advanced biliary tract cancer: a real-world study

JOURNAL=Frontiers in Immunology

VOLUME=16

YEAR=2025

URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1493234

DOI=10.3389/fimmu.2025.1493234

ISSN=1664-3224