1. 2nd Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland.
2. Centre for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Kraków, Poland.
3. Department of Internal Medicine, Connective Tissue Diseases and Geriatrics, Medical University of Gdańsk, Poland.
4. Department of Rheumatology and Connective Tissue Diseases, Medical University of Lublin, Poland.
5. Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wrocław, and Department of Nephrology and Internal Medicine, University of Opole, Poland.
6. Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wrocław, Poland.
7. Department of Rheumatology and Internal Diseases, Pomeranian Medical University in Szczecin, Poland.
8. Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdańsk, Poland.
9. Department of Internal Medicine and Rheumatology, Military Institute of Medicine, Warszawa, Poland.
10. Department of Internal Medicine and Rheumatology, Military Institute of Medicine, Warszawa, and Clinical Research Support Centre, Military Institute of Medicine, Warszawa, Poland.
11. Department of Internal Diseases and Rheumatology, Central Clinical Hospital of the Ministry of the Interior and Administration, Warszawa, Poland.
12. Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Wrocław, Poland.
13. Department of Internal Medicine and Metabolic Diseases, Medical University of Silesia, Katowice, Poland.
14. Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warszawa, Poland.
15. Department of Internal Medicine, Rheumatology and Clinical Immunology, Medical University of Silesia, Katowice, Poland.
16. Centre for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Kraków, Poland. wojciech.szczeklik@uj.edu.pl