[Epidemiological study of infectious hepatitis in Obatake Village, Yamaguchi Prefecture].
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology* / Q000401:mortality; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged