1. Clinic of Cardiac and Vascular Diseases, Institute of Clinical Medicine, Vilnius University, Vilnius, Lithuania
2. Centre of Cardiology and Angiology, Department of Cardiovascular Diseases, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
3. Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Center, Munich, Technische Universität München, Munich, Germany