title: [Epidemiologic study of liver cancer in the past 20 years].
authors.forename: J G
authors.initials: JG
authors.lastname: Chen
mesh_terms: D002681:China / Q000453:epidemiology; D006801:Humans; D008113:Liver Neoplasms / Q000453:epidemiology* / Q000517:prevention & control; D015995:Prevalence; D012307:Risk Factors