Table 1 Keywords used in The PubMed database

#1

Acute-On-Chronic Liver Failure [Mesh Terms]

#2

ACLF [All Fields]

#3

#1 OR #2

#4

Hepatitis B virus [Mesh Terms]

#5

HBV [All Fields]

#6

#4 OR #5

#7

#3 AND #6

#8

HBV-ACLF [All Fields]

#9

hepatitis B virus-associated acute-on-chronic liver failure [All Fields]

#10

hepatitis B virus-related acute-on-chronic liver failure [All Fields]

#11

#7 OR #8 OR #9 OR #10

#12

Risk Factors [Mesh Terms]

#13

risk factor [All Fields]

#14

factor, risk [All Fields]

#15

factors, risk [All Fields]

#16

#12 OR #13 OR #14 OR #15

#17

Mortality [Mesh Terms]

#18

death rate [All Fields]

#19

#17 OR #18

#20

#11 AND #16 AND #19