1. Department of Cardiology Papageorgiou Hospital Thessaloniki Greece
2. Department of Cardiology Ippokrateion Hospital Thessaloniki Greece
3. Department of Cardiothoracic Surgery Papageorgiou Hospital Thessaloniki Greece
4. Department of Radiology Papageorgiou Hospital Thessaloniki Greece
5. Department of Cardiovascular Sciences Hammersmith Hospital Imperial College London London UK