1 Carol Davila University of Medicine and Pharmacy, Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest, Romania.
2 Carol Davila University of Medicine and Pharmacy, University Emergency Hospital, Bucharest, Romania.
3 Fundeni Clinical Institute, Bucharest, Romania.
4 Carol Davila University of Medicine and Pharmacy, Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest, Romania. msiacob@gmail.com.