title: Epidemiology of clinical infectious hepatitis in Cleveland County, Oklahoma from July 1, 1968--June 30, 1969.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D009825:Oklahoma; D012737:Sex Factors; D011795:Surveys and Questionnaires