Endemic infectious hepatitis in an infants' orphanage. II. Epidemiologic studies in infants and small children.
D002648:Child; D003141:Communicable Diseases; D016021:Epidemiologic Studies; D006505:Hepatitis; D006506:Hepatitis A; D006801:Humans; D007223:Infant; D019372:Orphanages; D014765:Viral Vaccines
D014765:Viral Vaccines
HEPATITIS, INFECTIOUS/in infant and child