PLC	primary liver cancer
HBV	hepatitis B virus
HCV	hepatitis C virus
VA	Vitamin A
HCC	hepatocellular carcinoma
ATBC	the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study
CARET	Beta-Carotene and Retinol Efficacy Trial
GPS	generalized propensity score
NCCN	National Comprehensive Cancer Network
FFQ	food frequency questionnaire
OR	odds ratios
RE	retinol equivalent
SELECT	the Selenium and Vitamin E Cancer Prevention Trial
ROS	reactive oxygen species
RNS	reactive nitrogen species
8-OhdG	8-hydroxydeoxyguanosine
HSC	hepatic stellate cells
MET	metabolic equivalent
WHR	waist-to-hip ratio retinol
BMI	Body mass index