1. Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, 15-276 Białystok, Poland
2. Department of Internal Medicine and Metabolic Diseases, Medical University of Białystok, 15-276 Białystok, Poland
3. Clinical Research Centre, Medical University of Białystok, 15-276 Białystok, Poland
4. Faculty of Computer Science, Bialystok University of Technology, 15-351 Białystok, Poland