title: Cloning and endonuclease mapping of the hepatitis B viral genome.
mesh_terms: D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D004279:DNA, Viral / Q000235:genetics*; D005814:Genes, Viral; D006511:Hepatitis B Antigens / Q000235:genetics / Q000276:immunology; D006515:Hepatitis B virus / Q000235:genetics*
chemical_list: D004274:DNA, Recombinant; D004279:DNA, Viral; D006511:Hepatitis B Antigens; D004262:DNA Restriction Enzymes