1. Collegium Medicum Jan Kochanowski University Kielce Poland
2. Department of Infectious Diseases and Hepatology, Faculty of Medicine Collegium Medicum Bydgoszcz, Nicolaus Copernicus University Toruń Poland
3. Department of Infectious Diseases and Allergology Jan Kochanowski University Kielce Poland
4. Department of Environmental Medicine Poznań University of Medical Sciences Poznań Poland
5. Department of Basic Medical Sciences, School of Public Health in Bytom Medical University of Silesia Katowice Poland
6. Department of Infectious Diseases Medical University of Lublin Lublin Poland
7. Outpatient Clinic Hospital for Infectious Diseases in Warsaw Warsaw Poland
8. Clinical Department of Infectious Diseases in Chorzów Medical University of Silesia Katowice Poland
9. Department of Internal Medicine and Hepatology The National Institute of Medicine of the Ministry of Interior and Administration Warszawa Poland
10. Pomeranian Center of Infectious Diseases, Medical University Gdańsk Poland
11. Department of Infectious Diseases and Hepatology Wrocław Medical University Wrocław Poland
12. Department of Infectious Diseases and Hepatology Medical University of Białystok Białystok Poland
13. Department of Infectious Diseases and Hepatology Medical University of Łódź Łódź Poland
14. Outpatients Hepatology Department State University of Applied Sciences Konin Poland
15. MedicalSpec Medical Center Wrocław Poland
16. Department of Infectious Diseases and Hepatology Medical University of Silesia in Katowice Bytom Poland