1. Department of Pathophysiology; Wroclaw Medical University; Wroclaw Poland
2. Department of Hygiene; Wroclaw Medical University; Wroclaw Poland
3. Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation; Wroclaw Medical University; Wroclaw Poland
4. Department of Internal Medicine, Occupational Diseases and Hypertension; Wroclaw Medical University; Wroclaw Poland
5. Department of Geriatrics; Wroclaw Medical University; Wroclaw Poland