1. Department of Cardiology, Mater Dei Hospital and University of Malta, Msida, Malta
2. Department of Cardiology, Mater Dei Hospital, Msida, Malta
3. Mater Dei Hospital, Msida, Malta
4. Statistics & Operations Research, Faculty of Science, University of Malta, Msida, Malta
5. Mater Dei Hospital and University of Malta, Msida, Malta