1. Faculty of Medicine Department of Internal Medicine University of Medicine and Pharmacy “Grigore T. Popa” Iasi Romania
2. Internal Medicine Clinic Emergency Clinical Hospital “Saint Spiridon” Iasi Romania
3. Faculty of Medicine Department of II Medicale University of Medicine and Pharmacy “Grigore T. Popa” Iasi Romania
4. Institute of Gastroenterology and Hepatology Emergency Clinical Hospital “Saint Spiridon” Iasi Romania