title: Letter: Hepatitis with hindsight.
mesh_terms: D004196:Disease Outbreaks; D006509:Hepatitis B / Q000209:etiology* / Q000266:history; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008887:Military Medicine; D014481:United States; D014611:Vaccination / Q000009:adverse effects*; D014765:Viral Vaccines / Q000009:adverse effects*; D015004:Yellow Fever / Q000517:prevention & control*
chemical_list: D014765:Viral Vaccines