title: Letter: Hepatitis-B core antigen and antibody in primary liver cancer.
mesh_terms: D000906:Antibodies / Q000302:isolation & purification*; D006510:Hepatitis B Antibodies / Q000302:isolation & purification*; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D008099:Liver / Q000276:immunology; D008113:Liver Neoplasms / Q000276:immunology*
chemical_list: D000906:Antibodies; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens