1. Cardiac Rehabilitation Unit and Department of Research and Education, General Hospital Murska Sobota, Rakican, Ulica dr. Vrbnjaka 6, Murska Sobota 9000 , Slovenia
2. Department of Vascular Diseases, University Medical Centre Ljubljana , Zaloška 7, Ljubljana 1000 , Slovenia
3. Faculty of Medicine, University of Ljubljana , Zaloška 7, Ljubljana 1000 , Slovenia
4. Heart Failure Unit, G. da Saliceto Hospital, AUSL Piacenza , Via Taverna Giuseppe 49, Piacenza 29121 , Italy
5. Institute of Life Sciences, Sant'Anna School of Advanced Studies , Via Santa Cecilia 3, Pisa 56127 , Italy
6. Division of Cardiology, Department of Internal Medicine, General Hospital Murska Sobota , Rakican, Ulica dr. Vrbnjaka 6, Murska Sobota 9000 , Slovenia