[Material on the epidemiology of epidemic hepatitis. I. Seasonality].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D012621:Seasons
Materialy k épidemiologii épidemicheskogo gepatita. I. Sezonnost'.