title: Preparation and characterization of hepatitis B-antigen for radioimmunoassay.
mesh_terms: D000906:Antibodies; D011232:Chemical Precipitation; D002850:Chromatography, Gel; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D007106:Immune Sera; D007457:Iodine Radioisotopes; D008722:Methods; D008854:Microscopy, Electron; D011092:Polyethylene Glycols / Q000494:pharmacology; D011134:Polysaccharides; D011863:Radioimmunoassay
chemical_list: D000906:Antibodies; D006511:Hepatitis B Antigens; D007106:Immune Sera; D007457:Iodine Radioisotopes; D011134:Polysaccharides; D011092:Polyethylene Glycols