title: Hepatitis B surface antigen detection by the millipore filters system.
mesh_terms: D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008832:Microchemistry; D011863:Radioimmunoassay / Q000379:methods; D014462:Ultrafiltration / Q000379:methods
chemical_list: D006514:Hepatitis B Surface Antigens