1. First Department of Internal Medicine, Diabetes Centre, Division of
Endocrinology and Metabolism, AHEPA University Hospital, Thessaloniki,
Greece
2. Department of Pneumonology, Democritus University of Thrace School of
Health Sciences, Alexandroupolis, Greece
3. Diabetes Centre, Second Department of Internal Medicine, Democritus
University of Thrace, Alexandroupolis, Greece
4. Department of Clinical Biochemistry, University College London, Royal
Free Hospital Campus, London, United Kingdom of Great Britain and Northern
Ireland