1. Family Medicine Department, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
2. Internal Medicine Clinic, ‘Colentina’ Clinical Hospital, 020125 Bucharest, Romania
3. Internal Medicine Clinic, ‘George Emil Palade’ University of Medicine, Pharmacy, Science and Technology, 540139 T�rgu Mureș, Romania
4. Internal Medicine and Gastroenterology Clinic, Emergency County Hospital, 200642 Craiova, Romania