Epidemiology of HBV infection in Singapore.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005006:Ethnicity; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D008113:Liver Neoplasms / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D012846:Singapore