1. Department of Gastroenterology and Hepatology with Internal Disease Unit, Specialist University Hospital Frederic Chopin in Rzeszow, Rzeszow, Poland.
2. Medical Department, University of Rzeszów, Rzeszów, Poland.
3. Department of Gastroenterology and Hepatology, Medical University of Gdansk, Gdansk, Poland.
4. Liver and Internal Medicine Unit, Medical University of Warsaw, Warsaw, Poland.
5. Translational Medicine Group, Pomeranian Medical University, Szczecin, Poland.
6. Endoscopy Unit, Maria Sklodowska-Curie National Research Institute of Oncology—Gliwice Branch, Gliwice, Poland.
7. Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany.
8. Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, Essen, Germany.