1. Cardiology Department, Pediatric Clinic, University Medical Centre Ljubljana, Bohoriceva 20, 1000 Ljubljana, Slovenia
2. Cardiovascular Surgery Department, Surgical Clinic, University Medical Centre Ljubljana, Zaloska 7, 1000 Ljubljana, Slovenia
3. Cardiology Department, Internal Medicine Clinic, University Medical Centre Ljubljana, Zaloska 7, 1000 Ljubljana, Slovenia
4. Clinical Institute of Radiology, University Medical Centre Ljubljana, Zaloska 7, 1000 Ljubljana, Slovenia