title: Hepatitis-B antigen in Iran: frequency and subtype.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D005779:Immunodiffusion; D007492:Iran; D008297:Male; D008875:Middle Aged
chemical_list: D006511:Hepatitis B Antigens