1
Published 1994
International Agency for Research on Cancer
Subjects: ...Hepatitis Delta Virus...

2
Published 2007
World Health Organization, International Agency for Research on Cancer
Subjects: ...Tumor Virus Infections / virology...

3
Published 1995
World Health Organization, International Agency for Research on Cancer
Subjects: ...Tumor Virus Infections / etiology...

4
Published 1995
World Health Organization, International Agency for Research on Cancer
Subjects: ...Tumor Virus Infections / etiology...

5
Published 1994
International Agency for Research on Cancer
Subjects: ...Hepatitis B virus / https://id.nlm.nih.gov/mesh/D006515...

6
Published 1997
IARC
Subjects: ...Tumor Virus Infections...