title: [Epidemiological study on hepatitis B virus infection among five ethnic groups in Pingtung County, Taiwan].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology* / Q000208:ethnology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008297:Male; D012737:Sex Factors; D013624:Taiwan
chemical_list: D006514:Hepatitis B Surface Antigens