1 Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Borowska St. 213, 50-556 Wroclaw, Poland.
2 Laboratory of RNA Biochemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 6, 14195 Berlin, Germany.
3 Department of Clinical and Experimental Pathology, Wroclaw Medical University, K. Marcinkowskiego St. 1, 50-368 Wroclaw, Poland.
4 Department of Geriatrics, Wroclaw Medical University, Marii Skłodowskiej-Curie St. 66, 50-369 Wroclaw, Poland.