title: Letter: Identification of hepatitis-B antigen.
mesh_terms: D001706:Biopsy; D006509:Hepatitis B / Q000276:immunology; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D008099:Liver / Q000276:immunology / Q000473:pathology; D013194:Staining and Labeling
chemical_list: D006511:Hepatitis B Antigens