Mustafa Ahmed, A. . “Prevalence of Helicobacter Pylori Infection in Patients With Upper GI Symptoms: A Comparison Between Normal and Abnormal Upper Gastrointestinal Endoscopy Findings”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 29, no. 3, Dec. 2025, pp. 600-9, doi:10.15218/zjms.2025.065.