1. Department of General Surgery, Penteli Children’s Hospital, 15236 Athens, Greece
2. Department of Neurosurgery, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41334 Larissa, Greece
3. Department of Neurosurgery, Evangelismos Hospital, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, 10676 Athens, Greece
4. Department of Psychiatry, Eginition Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece