The Significant Association of the dupA and cagA genes of Helicobacter pylori with Peptic Ulcer Journal title: Journal of Human Environment and Health Promotion Authors: Hamid Reza Zeraatgar Gohardani, Ehsan Moghanloo, Parisa Badameh, Soheila Rezaei, Vahid Babaei, Shahr... Subject(s): Environmental Sciences