1. Department of General, Transplant and Liver Surgery; Medical University of Warsaw; Warsaw Poland
2. Department of Gastroenterology, Hepatology and Eating Disorders; The Children's Memorial Health Institute; Warsaw Poland
3. Department of Gastroenterology; Silesian University of Medicine; Katowice Poland
4. Laboratory of Experimental Hepatology, Center for Experimental Medicine; Institute for Clinical and Experimental Medicine; Praha Czech Republic