title: [Age, causes of hospitalization and death of children treated in hospitals in the years 1963 and 1967].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002662:Child Health Services; D002673:Child, Hospitalized; D002675:Child, Preschool; D003428:Cross Infection; D005260:Female; D006276:Health Facility Size; D006306:Health Surveys; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007902:Length of Stay; D008297:Male; D009026:Mortality; D011044:Poland
vernacular_title: Wiek, przyczyny hospitalizacji i zgonów dzieci leczonych w szpitalach w latach 1963 i 1967.