1 Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. Borcaanca@yahoo.com.
2 Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. drgheorghe@xnet.ro.
3 Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest, Romania. roxanacostache@gmail.com.
4 Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. monicaluciacojocaru@yahoo.com.
5 Center of Gastroenterology and Hepatology, Fundeni Clinical Institute, Bucharest; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. drlgheorghe@xnet.ro.