title: Occult hepatitis B virus infection in patients with hepatocellular carcinoma: Innocent bystander, cofactor, or culprit?
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Marrero
authors.forename: Anna S F
authors.initials: AS
authors.lastname: Lok
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000150:complications* / Q000821:virology*; D006509:Hepatitis B / Q000150:complications* / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008113:Liver Neoplasms / Q000150:complications* / Q000821:virology*
chemical_list: D006514:Hepatitis B Surface Antigens