title: [Liver functions and HBsAg antibody in the aged: a comparative evaluation of Sashima-cho, Ibaragi Prefecture (a hepatitis-epidemic area) and Hayakawa-cho, Yamanashi Prefecture].
mesh_terms: D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006801:Humans; D007564:Japan; D008111:Liver Function Tests; D008297:Male
chemical_list: D000914:Antibodies, Viral; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens