1 Gr. T. Popa University of Medicine and Pharmacy, and Institute of Gastroenterology and Hepatology, St. Spiridon Emergency Hospital,Iasi, Romania.
2 Gr. T. Popa University of Medicine and Pharmacy, and Institute of Gastroenterology and Hepatology, St. Spiridon Emergency Hospital,Iasi, Romania. ancatrifan@yahoo.com.