Al-Badaii F, Bajah K, Ahmed S, Al-Ameri H, Shumaila H, Abbas Z, et al. Prevalence of Helicobacter pylori Infection and Associated Risk Factors among Schoolchildren at Dhamar City, Yemen. Int. J. Sci. Res. Biol. Sci. [Internet]. 2021 Dec. 31 [cited 2025 Apr. 11];8(6):16-22. Available from: https://ijsrbs.isroset.org/index.php/j/article/view/497