title: Highly sensitive screening tests for hepatitis B surface antigen in transfusion centres of developing countries.
mesh_terms: D001782:Blood Donors; D003362:Cost-Benefit Analysis; D003378:Counterimmunoelectrophoresis; D003906:Developing Countries; D004797:Enzyme-Linked Immunosorbent Assay; D006386:Hemagglutination Tests; D006509:Hepatitis B / Q000517:prevention & control; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D012307:Risk Factors
chemical_list: D006514:Hepatitis B Surface Antigens