1. Department of Cardiovascular Surgery, Pontifical Bolivarian University, Cardio VID Clinic, Medellín, Colombia
2. Dr. Horacio E. Oduber Hospitaal, Oranjestad, Aruba, Dutch Caribbean
3. Department of Cardiovascular Surgery, Colsubsidio Calle 100, Country Clinic, Bogota, Colombia
4. Department of Cardiovascular Surgery, Fundación Clínica Shaio, Bogota, Colombia
5. Department of Cardio-thoracic Surgery, Maastricht University Medical Center, The Netherlands