1. 1st Department of Propaedeutic Surgery, School of Medicine, National and Kapodistrian University of Athens, Hippokration General Hospital, Athens, Greece
2. Transfusion Medicine and Blood Bank Department, General Hospital of Nea Ionia “Konstantopouleio-Patision”, Athens, Greece
3. 1st Department of Psychiatry, School of Medicine, National and Kapodistrian University of Athens, Eginition Hospital, Athens, Greece
4. Department of Child Psychiatry, School of Medicine, National and Kapodistrian University of Athens, “Aghia Sophia” Children’s Hospital, Athens, Greece