1. Cardiovascular Surgery Service, University Hospital Virgen de la Victoria, Málaga CIBERCV Cardiovascular Diseases, Health Institute Carlos III, Madrid, Spain
2. Cardiovascular Surgery Service, University Hospital Puerta del Mar, Cádiz, Spain
3. Cardiovascular Surgery Service, University Hospital Virgen del Rocío, Sevilla, Spain
4. Cardiovascular Surgery Service, University Hospital Virgen de las Nieves, Granada, Spain
5. Cardiovascular Surgery Service, University Hospital Reina Sofía, Córdoba, Spain
6. Cardiovascular Surgery Service, University Hospital Virgen Macarena, Sevilla, Spain
7. Cardiovascular Surgery Service, Regional University Hospital, Málaga, Spain