1. Department of Pharmacokinetics and Clinical Pharmacy, Faculty of Pharmacy, University of Belgrade, Belgrade Serbia
2. Clinic for Gastroenterology and Hepatology, Clinical Center of Serbia, School of Medicine, University of Belgrade, Belgrade Serbia
3. Department of Medical Biochemistry, Clinical Centre of Serbia, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
4. Emergency Center, Clinical Center of Serbia, Belgrade, Serbia
5. Clinic for Digestive Surgery, Clinical Center of Serbia, Belgrade, Serbia