Al-Badaii, F. (2021) “Prevalence of Helicobacter pylori Infection and Associated Risk Factors among Schoolchildren at Dhamar City, Yemen”, International Journal of Scientific Research in Biological Sciences, 8(6), pp. 16–22. Available at: https://ijsrbs.isroset.org/index.php/j/article/view/497 (Accessed: 11 April 2025).