Prevalence of antibody to hepatitis B virus in an urban population of Northeast Brazil.
D000367:Age Factors; D001938:Brazil; D005260:Female; D006509:Hepatitis B / Q000175:diagnosis / Q000453:epidemiology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006801:Humans; D008297:Male; D012737:Sex Factors
D006510:Hepatitis B Antibodies