Epidemiological studies in cholera; occupation, age, sex, secondary cases, vaccination, case fatality.
PETERSON
J S
JS
D001699:Biometry; D002771:Cholera / Q000453:epidemiology* / Q000706:statistics & numerical data*; D016021:Epidemiologic Studies; D009790:Occupations; D014611:Vaccination
CHOLERA/epidemiology and statistics