“Determination of Helicobacter Pylori Antigen in Adults in Low Socio-Economic Conditions in a Neighborhood of Juigalpa”. Revista Torreón Universitario 11, no. 31 (May 31, 2022): 70–78. Accessed August 6, 2025. https://revistas.unan.edu.ni/index.php/Torreon/article/view/3039.