1. Cardiac Intensive Care Unit, The Heart Institute Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
2. Faculty of Medicine Jagiellonian University Medical College Krakow Poland
3. Department of Statistics Federal University of Parana Curitiba Brazil
4. Section of Clinical Biochemistry University of Verona Verona Italy
5. Department of Emergency Medicine University of Cincinnati Cincinnati Ohio USA
6. Clinical Immunology Unit Stavanger University Hospital Stavanger Norway
7. Division of Nephrology and Hypertension Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
8. Department of Pediatrics, College of Medicine University of Cincinnati Cincinnati Ohio USA