[Epidemiological studies on three epidemics of Q fever].
D001699:Biometry; D058872:Epidemics; D016021:Epidemiologic Studies; D011778:Q Fever / Q000453:epidemiology* / Q000706:statistics & numerical data*
Q FEVER/epidemiology and statistics
Epidemiologische Studien zur 3 Q-Fieberausbrüchen.