title: Letter: Commerical haemagglutination tests for hepatitis-B antigen.
mesh_terms: D004345:Drug Industry; D005189:False Positive Reactions; D006386:Hemagglutination Tests; D006509:Hepatitis B / Q000175:diagnosis / Q000276:immunology; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D008722:Methods
chemical_list: D006511:Hepatitis B Antigens