[1] Mohammed VI Univ Hosp, Dept Hepatogastroenterol, Oujda, Morocco
[2] Mohammed First Univ, Fac Med & Pharm, Digest Dis Res Lab DSRL, Oujda, Morocco
[3] Univ Mohammed Premier, Lab Genet Med, Lab Cent, Fac Med Pharm Oujda,Ctr Hosp Univ Mohammed VI, Oujda, Morocco
[4] Mohammed 1st Univ, Mohammed VI Univ Hosp, Fac Med, Dept Pathol, Oujda, Morocco