1. Pediatric Cardiology Section; Private Hospital of Córdoba; Córdoba Argentina
2. Cardiology Division; Private Hospital of Córdoba; Córdoba Argentina
3. Catheterization Laboratory for Cardiac Interventions; State Hospital Provincial of Centenario; Rosario Argentina
4. Catheterization Laboratory for Congenital Heart Disease; Institute Dante Pazzanese of Cardiology; Sao Paulo Brazil