title: EPIDEMICS of Q fever among troops returning from Italy in the spring of 1945; etiological studies.
mesh_terms: D001699:Biometry; D058872:Epidemics; D007558:Italy; D011778:Q Fever; D012282:Rickettsia Infections / Q000453:epidemiology* / Q000706:statistics & numerical data*; D012621:Seasons