1 University of Medicine and Pharmacy "Carol Davila" Bucharest, Bucharest, Romania; Department of Cardiology, University and Emergency Hospital of Bucharest, Bucharest, Romania. Electronic address: andrei_marg@yahoo.com.
2 University of Medicine and Pharmacy "Carol Davila" Bucharest, Bucharest, Romania.
3 University of Medicine and Pharmacy "Carol Davila" Bucharest, Bucharest, Romania; Department of Cardiology, University and Emergency Hospital of Bucharest, Bucharest, Romania.