1. Centro Cardiovascular Universitario, Montevideo, Uruguay
2. Mexican College of Cardiovascular and Thoracic Surgery, Mexico City, Mexico
3. Universidad CES, Medellin, Colombia
4. Colegio Argentino de Cirujanos Cardiovasculares, Buenos Aires, Argentina
5. Cardiovascular Surgery Department, Hospital Clinic Barcelona, Barcelona, Spain
6. University Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
7. Department of Cardiothoracic Surgery, Stanford University, Stanford, USA
8. University Center Assis Gurgacz, Cascavel, PR, Brazil