[The epidemiology of infectious hepatitis in infants under 6 months of age].
D006506:Hepatitis A / Q000453:epidemiology*; D006509:Hepatitis B / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D014586:USSR
K voprosu ob épidemiologii bolezni Botkina u deteĭ pervogo polugodiia zhizni.