[Epidemiological study on typhoid fever, dysentery and diphtheria in Chungcheong Nam Do, Korea].
D004165:Diphtheria / Q000453:epidemiology; D004404:Dysentery, Amebic / Q000453:epidemiology; D004812:Epidemiologic Methods; D007723:Korea; D014435:Typhoid Fever / Q000453:epidemiology