[1] Carol Davila Univ Med & Pharm, Sfanta Maria Hosp, Gastroenterol Dept, Bucharest 020021, Romania
[2] Sfanta Maria Hosp, Gastroenterol Dept, Bucharest 011172, Romania
[3] Carol Davila Univ Med & Pharm, Fundeni Clin Inst, Ctr Digest Dis & Liver Transplantat, Bucharest 020021, Romania