title: Sensitivity of direct solid-phase radioimmunoassay for detection of hepatitis-associated antigen.
mesh_terms: D001782:Blood Donors; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D008722:Methods; D009500:Neutralization Tests; D011863:Radioimmunoassay
chemical_list: D006511:Hepatitis B Antigens