[Epidemiology and etiology of acute respiratory diseases].
D000208:Acute Disease; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012140:Respiratory Tract Diseases / Q000453:epidemiology / Q000209:etiology*; D014586:USSR
Epidemiologiia i étiologiia ostrykh respiratornykh zabolevaniĭ.