1. Department of Cardiology, University Emergency Hospital of Bucharest, 169 Splaiul Independentei St, 050098 Bucharest, Romania
2. Faculty of Medicine and Pharmacy, Dunarea de Jos University of Galati, 35 AL Cuza St, 800010 Galati, Romania
3. Emergency County Clinical Hospital, 2 Buzaului St, 810325 Braila, Romania
4. Saint Apostle Andrew Emergency County Clinical Hospital, 177 Brailei St, 800578 Galati, Romania