1. 2nd Department of Radiology, Nuclear Medicine Section Attikon University Hospital Athens Greece
2. 2nd Department of Cardiology Attikon University Hospital Athens Greece
3. Department of Biomedical Engineering University of West Attica, UNIWA & Biomedical Research Foundation of the Academy of Athens, BRFAA Athens Greece
4. 2nd Department of Psychiatry Attikon University Hospital Athens Greece
5. Department of Cardiology National and Kapodistrian University of Athens Athens Greece
6. Department of Nuclear Medicine Biomedical Research Foundation of the Academy of Athens, BRFAA Athens Greece