1. Department of Cardiology, University Hospital “Thalassotherapia Opatija,” Medical Faculty University of Rijeka, Opatija, Croatia.
2. Department of Internal Medicine, Medical Faculty “J.J. Strossmayer” University of Osijek, Osijek, Croatia.
3. Department of Radiology, University Hospital “Thalassotherapia Opatija,” Opatija, Croatia.
4. Department of Cardiology-Arrhythmology and Electrophysiology, University Hospital “Sestre Milosrdnice,” Zagreb, Croatia.