Authors
Ivan Simic
Department of Internal medicine, Faculty of medical sciences, University of Kragujevac, Kragujevac, Serbia
Department of Cardiology, Clinical Center Kragujevac, Kragujevac, Serbia
Vladimir Zdravkovic
Department of Internal medicine, Faculty of medical sciences, University of Kragujevac, Kragujevac, Serbia
Department of Cardiology, Clinical Center Kragujevac, Kragujevac, Serbia