1. 1School of Biomedical Sciences, International Hellenic University, Thessaloniki, Greece
2. 2Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. 3Medical School, Demokritus University of Thrace, Thessaloniki, Greece
4. 4General Teaching Hospital “G. Papanikolaou”, Thessaloniki, Greece
5. 5General Teaching Hospital “Ippokrateio”, Thessaloniki, Greece