1. Department of Gastroenterology; Colentina Clinical Hospital; Bucharest Romania
2. “Carol Davila” University of Medicine; Bucharest Romania
3. Department of Cardiology; Colentina Clinical Hospital; Bucharest Romania
4. Department of Internal Medicine; Colentina Clinical Hospital; Bucharest Romania
5. Department of Gastroenterology and Hepatology; Fundeni Clinical Institute; Bucharest Romania