title: Exploring risk factors of hepatitis B virus-associated hepatocellular carcinoma: prospective verse retrospective studies.
authors.forename: Guangwen
authors.initials: G
authors.lastname: Cao
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000209:etiology*; D006515:Hepatitis B virus / Q000235:genetics; D019694:Hepatitis B, Chronic / Q000150:complications*; D006801:Humans; D008113:Liver Neoplasms / Q000209:etiology*; D011446:Prospective Studies; D012189:Retrospective Studies; D012307:Risk Factors
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