1. School of Science and Technology, Hellenic Open University, 263 35 Patras, Greece
2. Department of Quality Control, Research and Continuing Education, Sismanogleio General Hospital, 151 26 Marousi, Greece
3. Child and Adolescent Psychiatric Department, Penteli General Children’s Hospital, 152 36 Penteli, Greece
4. Pediatric Endocrinology Outpatient Clinic, Penteli General Children’s Hospital, 152 36 Penteli, Greece
5. Pediatric Clinic, Penteli General Children’s Hospital, 152 36 Penteli, Greece
6. Penteli General Children’s Hospital, 152 36 Penteli, Greece
7. Biomedical Engineering Laboratory, National Technical University of Athens, 157 80 Athens, Greece