1. Department of the Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok 15-089, Poland
2. Department of Metabolic Diseases, Medical University of Bialystok, Bialystok 15-089, Poland
3. Department of Prophylaxis of Metabolic Diseases, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland
4. Department of Statistics and Medical Informatics, Medical University of Bialystok, Bialystok 15-089, Poland
5. Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok 15-089, Poland