Underascertainment of infectious intestinal disease.
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Handysides
D004739:England / Q000453:epidemiology; D005517:Foodborne Diseases / Q000453:epidemiology*; D005767:Gastrointestinal Diseases / Q000453:epidemiology*; D006801:Humans; D011159:Population Surveillance / Q000379:methods; D012307:Risk Factors