title: [Pediatric cardiac surgical procedures in Poland in 2001].
mesh_terms: D006348:Cardiac Surgical Procedures / Q000706:statistics & numerical data*; D002648:Child; D002983:Clinical Competence; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D011044:Poland; D011785:Quality Assurance, Health Care