1. Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
2. Department of Dietetics and Nutrition, AHEPA University Hospital, Thessaloniki, Greece
3. Medical Statistics, Epirus Science and Technology Park Campus of the University of Ioannina, Ioannina, Greece
4. Laboratory of Biochemistry, AHEPA General Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece