title: VIth Balkan Pediatric Cardiology and Cardiac Surgery Congress. Abstracts.
mesh_terms: D000293:Adolescent; D000818:Animals; D006348:Cardiac Surgical Procedures; D002309:Cardiology; D002318:Cardiovascular Diseases; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn