1. DEPARTMENT OF PUBLIC HEALTH & SOCIAL MEDICINE, MEDICAL UNIVERSITY OF GDANSK, GDANSK, POLAND
2. DEPARTMENT OF QUALITY OF LIFE RESEARCH, MEDICAL UNIVERSITY OF GDANSK, GDANSK, POLAND
3. DEPARTMENT OF MEDICAL RESCUE, POMERANIAN ACADEMY IN SLUPSK, SLUPSK, POLAND
4. DEPARTMENT OF HAEMATOLOGY & TRANSPLANTOLOGY, MEDICAL UNIVERSITY OF GDANSK, GDANSK, POLAND
5. DEPARTMENT OF IMMUNOBIOLOGY AND ENVIRONMENTAL MICROBIOLOGY, MEDICAL UNIVERSITY OF GDANSK, GDANSK, POLAND