title: Letter: Core antigen in chronic active hepatitis.
mesh_terms: D000906:Antibodies / Q000302:isolation & purification*; D002908:Chronic Disease; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000302:isolation & purification*; D006511:Hepatitis B Antigens; D006801:Humans
chemical_list: D000906:Antibodies; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens