1. Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Epirus, Greece
2. First Department of Clinical Oncology, Theageneio Cancer Hospital, 54639 Thessaloniki, Macedonia, Greece
3. Laboratory of Biological Chemistry, Department of Medicine, Section of Biological Sciences and Preventive Medicine, Aristotle University of Thessaloniki School of Medicine, 54124 Thessaloniki, Macedonia, Greece