Adebrelimab combined with anlotinib plus hepatic arterial infusion chemotherapy or intravenous chemotherapy for first-line treatment of advanced biliary tract cancer: protocol for a randomized open-label clinical study - Zeng, Jie; Liu, Jie; Ma, Fuchao; Yang, Lihua; Jiang, Yanfeng; Mo, Ning; Liu, Cuizhen; Tang, Jing; Fang, Xiaoqiang; Zeng, Zhiming; Ma, Jie (Journal of Gastrointestinal Oncology, 2025)