1 4 Dept. of Internal Medicine, Medical School, University of Athens, Greece. ; Biomedical Research Foundation of the Academy of Athens, Greece.
2 Attikon General Hospital, Athens, Greece.
3 Biomedical Research Foundation of the Academy of Athens, Greece.
4 Qatar Cardiovascular Research Center (QCRC), Qatar Foundation, Doha, Qatar.
5 NIHR Cardiovascular Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK. ; National Heart & Lung Institute, Imperial College London, London, UK.
6 Onassis Cardiac Surgery Center, Athens, Greece.
7 NIHR Cardiovascular Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK. ; National Heart & Lung Institute, Imperial College London, London, UK. ; NIHR Cardiovascular Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK.
8 Qatar Cardiovascular Research Center (QCRC), Qatar Foundation, Doha, Qatar. ; NIHR Cardiovascular Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK.