Rahman, M. M., A. Rowshon, and S. Rahim. “Diagnosis of Helicobactor Pylori in Bangladesh: Limited Options and Utility of Serologic Test”. Journal of Shaheed Suhrawardy Medical College, vol. 5, no. 1, Aug. 2013, pp. 1-2, doi:10.3329/jssmc.v5i1.16195.