1. ; Second Department of Internal and Cardiovascular Medicine, Faculty of Medicine; Charles University; Prague Czech Republic
2. ; Fourth Department of Internal Medicine and Gastroenterology, First Faculty of Medicine; Charles University; Prague Czech Republic
3. ; Second Department of Internal and Cardiovascular Medicine, First Faculty of Medicine; Charles University; Unemocnice 2 Prague 2 128 08 Czech Republic
4. ; Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine; Charles University; Prague Czech Republic