[Changes in the clinical course of the first attack of rheumatic fever in children during the last 12 years].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D011044:Poland; D011379:Prognosis; D012213:Rheumatic Fever
Zmiany w przebiegu klinicznym pierwszego rzutu choroby reumatycznej u dzieci w ciagu ostatnich 12 lat.