title: [On improvement of epidemiological methods in detection of infantile viral hepatitis].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D006506:Hepatitis A / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D007223:Infant; D012383:Romania; D012541:Scarlet Fever / Q000175:diagnosis
vernacular_title: Contribuţii la perfecţionarea metodologiei epidemiologice în cercetarea hepatitei virale infantile.