Head of the Department of Forensic Sciences at the Faculty of Medicine, MEDIPOL University, Ankara, Turkey
Emeritus Professor of Pediatrics and Endocrinology; Director of the Research University Institute of Maternal, Child, and Precision Medicine; Athens, Greece, Head of the UNESCO Chair of Adolescent Health and Medicine, National and Kapodistrian University of Athens (NKUA); Greece; President of the Hellenic College of Pediatricians, Athens, Greece
Former Director of the Pediatric Clinic, General Hospital of Arta, Greece
Emeritus Professor of Pediatric Gastroenterology, Faculty of Medicine, National and Kapodistrian University of Athens (NKUA); Greece, Scientific Director of the Pediatric Gastroenterology Department, "MITERA" Children’s Hospital, Athens, Greece
Prof. Emeritus of Pediatric Infectious Diseases, National and Kapodistrian University of Athens (NKUA), Greece, Chair of the Greek National Vaccination Committee