title: [Clinico-epidemiological problems of viral diseases in the developmental age].
mesh_terms: D000367:Age Factors; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control; D014777:Virus Diseases / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control
vernacular_title: Kliniczno-epidemiologiczne problemy chorób wirusowych w wieku rozwojowym.