Magaji, R. A., Y. Tanko, and G. M. Magaji. “THE ROLE OF AN AGGRESSIVE FACTOR IN PEPTIC ULCER DISEASE (PUD)”. African Journal of Infectious Diseases (AJID), vol. 2, no. 2, Nov. 2008, pp. 80-84, https://athmsi.org/journals/index.php/AJID/article/view/515.