Salinas, Ruth Elizabeth, Liliam Herrera, Angélica María Salgado, and Emerson Pocasangre. “Detection of VacA and CagA Genes in Helicobacter Pylori Strains in Salvadoran Patients”. Alerta, Revista científica del Instituto Nacional de Salud 8, no. 3 (July 31, 2025): 275–281. Accessed December 5, 2025. https://camjol.info/index.php/alerta/article/view/20761.