1 Carol Davila University of Medicine and Pharmacy, Bucharest; Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. preda_monicaa@yahoo.com.
2 Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. ralucaionamarin@yahoo.com.
3 Carol Davila University of Medicine and Pharmacy, Bucharest; Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. teodora.manuc@gmail.com.
4 Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. andrei_gila@yahoo.com.
5 Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. letitiatugui@yahoo.com.
6 Carol Davila University of Medicine and Pharmacy, Bucharest; Gastroenterology and Hepatology Department, Clinic Fundeni Institute, Bucharest, Romania. m_manuc@yahoo.com.