Vijaya Lakshmi, Vudumula. “Prevalence of Helicobacter Pylori Infection Among Patients Undergoing Upper Gastrointestinal Endoscopy”. Asian Journal of Health Sciences 3, no. 1 (June 30, 2015). Accessed May 4, 2024. http://ajhs.biomedpress.org/index.php/ajhs/article/view/405.