title: Letter: Agarose and counterimmunoelectrophoresis.
mesh_terms: D003378:Counterimmunoelectrophoresis / Q000295:instrumentation; D004586:Electrophoresis; D004587:Electrophoresis, Agar Gel; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D007122:Immunoelectrophoresis
chemical_list: D006511:Hepatitis B Antigens