title: Hepatitis B: a tribute to nondirected medical research.
mesh_terms: D006509:Hepatitis B / Q000266:history / Q000276:immunology* / Q000635:transmission; D006514:Hepatitis B Surface Antigens; D049673:History, 20th Century; D006801:Humans; D012106:Research
chemical_list: D006514:Hepatitis B Surface Antigens