1. Pediatric Cardiovascular Surgery, Posadas National Hospital, Hospital Universitario Austral, Buenos Aires, Argentina
2. Pediatric Cardiology, JP Garrahan Pediatric Hospital, Buenos Aires, Argentina
3. Pediatric Cardiovascular Surgery, Fundacion Cardioinfantil, Bogota, Colombia
4. INCOR, São Paulo, Brazil
5. Cardiovascular Surgery, Ricardo Gutierrez Children’s Hospital, Buenos Aires, Argentina