1. Department of Cardiology, Emergency University Hospital of Bucharest, 050098 Bucharest, Romania
2. Faculty of Medicine and Pharmacy, University “Dunarea de Jos” of Galati, 35 AI Cuza Street, 800010 Galati, Romania
3. Railway Hospital Galati, 800223 Galati, Romania
4. Emergency County Hospital Braila, 810325 Braila, Romania
5. Saint Apostle Andrew Emergency County Clinical Hospital, 177 Brailei Street, 800578 Galati, Romania
6. Clinical Department of Cardio-Thoracic Pathology, University of Medicine and Pharmacy “Carol Davila” Bucharest, 37 Dionisie Lupu Street, 4192910 Bucharest, Romania