title: [Incidence of rheumatic fever in children in the City of Lódź in the years 1969-1971].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002819:Chorea / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011044:Poland; D012213:Rheumatic Fever / Q000453:epidemiology*; D012214:Rheumatic Heart Disease / Q000453:epidemiology
vernacular_title: Zachorowalność na goraczke reumatyczna wśród dzieci miasta Lodzi w latach 1969-1971.