Department of Surgery, University "Dunarea de Jos", 800008 Galati, Romania. Department of Surgery, University "Ovidius'', 900470 Constanta, Romania. Arestetic Clinic, Galati 800098, Romania. Department of Surgery, Emergency County Clinical Hospital "Sf. Apostol Andrei", 800578 Galati, Romania. Second Department of Internal Medicine, Diabetes Centre-Diabetic Foot Clinic, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis 681 00, Greece. Department of Surgery, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania. Internal Medicine Department, Clinical Emergency Hospital of Bucharest, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania. Biomedical Department of Internal Medicine and Medical Specialties School of Medicine, University of Palermo, 90133 Palermo, Italy. Division of Endocrinology, Diabetes and Metabolism, University of South Carolina School of Medicine Columbia, Columbia, SC 29209, USA. Diabetes, Nutrition and Metabolic diseases Department, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.