NASIRI, J.; ROUHANI, E.; KHEIRI, S. Sero-epidemiologic study of helicobacter pylori in cowherds of Shahrekord province. Amazonia Investiga, [S. l.], v. 8, n. 18, p. 69–75, 2019. Disponível em: https://amazoniainvestiga.info/index.php/amazonia/article/view/262. Acesso em: 15 oct. 2025.