1. 2nd Department of Internal Medicine - Gastroenterology; Charles University in Prague; Faculty of Medicine in Hradec Kralove; University Hospital Hradec Kralove; Hradec Kralove Czech Republic
2. Department of Infectious diseases; Charles University in Prague; Faculty of Medicine in Hradec Kralove; University Hospital Hradec Kralove; Hradec Kralove Czech Republic
3. Fingerland Department of Pathology; Charles University in Prague; Faculty of Medicine in Hradec Kralove; University Hospital Hradec Kralove; Hradec Kralove Czech Republic