1. Department of Cardiology, Emergency Institute for Cardiovascular Diseases “Prof. Dr. C.C. Iliescu”, 022328 Bucharest, Romania
2. “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
3. Internal Medicine Department, Bucharest Clinical Emergency Hospital, 014461 Bucharest, Romania
4. Dr. Carol Davila University Central Military Emergency Hospital, Calea Plevnei 134, 010825 Bucharest, Romania
5. Department of Cardiology, Colentina Hospital, 020125 Bucharest, Romania
6. Department of Cardiology, “Prof. Dr. Theodor Burghele” Clinical Hospital, 061344 Bucharest, Romania