Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastroenterol. Mar 7, 2022; 28(9): 948-960
Published online Mar 7, 2022. doi: 10.3748/wjg.v28.i9.948
Figure 1
Figure 1 Selection of the study population. HCCA: Hilar cholangiocarcinoma.