title: Antigenic subtypes of hepatitis B antigen in Panama.
mesh_terms: D002353:Carrier State / Q000276:immunology; D003168:Complement Fixation Tests; D000939:Epitopes; D006509:Hepatitis B / Q000453:epidemiology / Q000276:immunology; D006511:Hepatitis B Antigens; D006801:Humans; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D007199:Indians, South American; D010176:Panama; D010177:Panama Canal Zone
chemical_list: D000939:Epitopes; D006511:Hepatitis B Antigens