[Problems and needs of pediatric cardiology in Poland].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital / Q000628:therapy*; D006331:Heart Diseases / Q000628:therapy*; D006801:Humans; D007223:Infant; D010372:Pediatrics; D011044:Poland
Problemy i potrzeby kardiologii dzieciecej w Polsce.