Talaie, R., H. Zojaji, D. Mirsattari, A. Kaboli, A. H. Mohammad Alizadeh, and M. R. Zali. “Comparison of Two Different Eradication Regimens for H. Pylori: Amoxicillin, Metronidazole, Bismuth and Omeprazole (OMAB) Versus the New Regimen of Penbactam, Clarithromycin and Omeprazole (OPC); A Randomized Clinical Trial”. Gastroenterology and Hepatology from Bed to Bench, vol. 1, no. 3, June 2009, doi:10.22037/ghfbb.v1i3.31.