BMI	body mass index
PHC	perihilar cholangiocarcinoma
HPB	hepato-pancreato-biliary
WHO	World Health Organization
RFS	recurrence-free survival
EU	European region
AJCC	American Joint Committee on Cancer
UICC	International Union Against Cancer
CT	computed tomography
MRI	magnetic resonance imaging
MRCP	magnetic resonance cholangiopancreatography
EBD	endoscopic biliary drainage
PTBD	percutaneous transhepatic biliary drainage
PVE	portal vein embolization
CLR	caudate lobe resection
CEA	carcinoembryonic antigen
CA 19-9	cancer antigen 19-9
ASA	American society of anesthesiologists
TNM	tumor node metastasis
ANOVA	analysis of variance
RI	recurrence interval
RFS	recurrence free survival
HR	hazard ratio
CI	confidence interval
HCC	hepatocellular carcinoma
iCCA	intrahepatic cholangiocarcinoma
NASH	non-alcoholic steatohepatitis
NAFLD	non-alcoholic fatty liver disease
eCCA	extrahepatic cholangiocarcinoma