Department of Gastroenterology;
Kaunas University of Medicine;
Kaunas;
Lithuania;
Department of Gastroenterology and Hepatology;
Academic Medical Center;
University of Amsterdam;
Amsterdam;
The Netherlands;
Institute of Endocrinology;
Kaunas University of Medicine;
Kaunas;
Lithuania;
Dr.Falk Pharma GmbH;
Freiburg;
Germany;
Department of Obstetrics and Gynecology;
Kaunas University of Medicine;
Kaunas;
Lithuania;