1. Cardiovascular Magnetic Resonance, Euromedica General Clinic,
Thessaloniki, Greece
2. Cardiology, Onassis Cardiac Surgery Center, Athens,
Greece
3. First Department of Pediatrics, School of Medicine, National and
Kapodistrian University of Athens, Aghia Sophia Children’s Hospital,
Athens, Greece, Exercise Physiology and Sport Medicine Clinic, Center for
Adolescent Medicine and UNESCO Chair in Adolescent Health Care, Athens,
Greece