1. Clinic for Assessment of Adolescent Learning Difficulties, Center for Adolescent Medicine and UNESCO Chair on Adolescent Health Care, First Department of Pediatrics, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece
2. University Research Institute of Maternal and Child Health and Precision Medicine, and UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece
3. Pediatric Hematology‑Oncology Unit, First Department of Pediatrics, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens 11527, Greece
4. Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
5. Laboratory of Clinical Virology, School of Medicine, University of Crete, Heraklion 71409, Greece