[Status of chronic viral hepatitis: a world-wide trend and problems in Japan].
Koike
Kazuhiko
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D000328:Adult; D000368:Aged; D019694:Hepatitis B, Chronic / Q000188:drug therapy / Q000453:epidemiology; D019698:Hepatitis C, Chronic / Q000188:drug therapy / Q000453:epidemiology; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008875:Middle Aged