1. Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wroclaw, Poland
2. Department of Clinical and Experimental Endocrinology, Medical University of Gdansk, 80-211 Gdansk, Poland
3. Department of Pharmaceutical Chemistry, Medical University of Gdansk, 80-416 Gdansk, Poland
4. Laboratory of Medical Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland