1. Department of Gastroenterology and Hepatology, Institute for Clinical and Experimental Medicine, Videnska 9, 14021 Prague, Czech Republic
2. Department of Transplantation Surgery, Institute for Clinical and Experimental Medicine, Videnska 9, 14021 Prague, Czech Republic
3. Institute of Microbiology, Academy of Science, Videnska 1083, 14021 Prague, Czech Republic
4. Department of Pathology, Institute for Clinical and Experimental Medicine, Videnska 9, 14021 Prague, Czech Republic
5. Department of Anesthesiology, Institute for Clinical and Experimental Medicine, Videnska 9, 14021 Prague, Czech Republic
6. Department of Statistics, Institute for Clinical and Experimental Medicine, Videnska 9, 14021 Prague, Czech Republic