Some epidemiological problems of infectious mononucleosis.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D005060:Europe; D005260:Female; D006801:Humans; D007244:Infectious Mononucleosis / Q000453:epidemiology*; D008297:Male; D014481:United States