1. Department of Gastroenterology, Academy of Silesia, 40-555 Katowice, Poland
2. H-T. Medical Center, 43-100 Tychy, Poland
3. Masovian Oncological Hospital, 05-135 Warsaw, Poland
4. Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
5. IMAD, Hepato-Gastroenterology & Digestive Oncology, University Hospital of Nantes, F-44093 Nantes, France
6. CHU de Nantes, Laboratoire d’Immunologie, Center for ImmunoMonitoring Nantes-Atlantique (CIMNA), F-44000 Nantes, France
7. University of Nantes, INSERM, Centre de Recherche Translationnel en Transplantation et Immunologie, UMR 1064, ITUN, F-44000 Nantes, France