Abstract: Compared with the
HBsAg-positive
HCC controls,
occult HBV-infected HCC patients had higher frequencies of
M1I and
Q2K in
pre-S2 gene,
G185R and
S210N in
surface gene,
A36T and
A44L in
X gene, and
G1721A in
enhancer II gene, and had lower rates of
pre-S deletions and
A1762T/
G1764A,