[The changed profile of sporadic acute hepatitis A in Japan].
Tsunoda
T
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Department of Infectious Diseases, Tokyo Metropolitan Ebara General Hospital.
D000208:Acute Disease; D000328:Adult; D006506:Hepatitis A / Q000453:epidemiology / Q000635:transmission; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male