Short- and long-term outcomes of laparoscopic versus open resection of perihilar cholangiocarcinoma: a propensity score-based analysis

Zhi-Peng Liu, Yue Wang, Yu Pan, Xiao-Lin Zhao, Long-Fei Chen, Xue-Song Li, Xiao-Jun Wang, Jian-Wei Li, Xian-Yu Yin, Jie Bai, Yan-Qi Zhang, Hai-Su Dai, Zhi-Yu Chen, Shu-Guo Zheng