1. Onassis Cardiac Surgery Center, Athens 17674, Greece
2. Clinic for Assessment of Adolescent Learning Difficulties, Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece
3. Department of Neurology, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece
4. Department of Cardiology, Aghia Sophia Children's Hospital, Athens 11527, Greece
5. Iaso Children's Hospital, Athens 15123, Greece
6. Hygeia Hospital, Athens 15123, Greece
7. University Research Institute of Maternal and Child Health and Precision Medicine and UNESCO Chair in Adolescent Health Care, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece