1 Department of Internal Medicine I, Faculty of Medicine, University of Medicine and Pharmacy 'Gr. T. Popa', No. 16, Universității Street, Iasi 700115, Romania.
2 Department of Cardiology, 'Sf. Spiridon' Emergency County Hospital, No. 1, Independenței Boulevard, Iasi 700111, Romania.
3 Department of Cardiology, Clinical Rehabilitation Hospital, No. 14, Pantelimon Halipa Street, Iasi 70061, Romania.