Prevalence of Helicobacter Pylori Infection in Yemeni Patients. Yemeni Journal for Medical Sciences, [S. l.], v. 7, n. 1, p. 33–38, 2014. DOI: 10.20428/yjms.v7i1.38. Disponível em: https://journals.ust.edu/index.php/yjms/article/view/38. Acesso em: 21 apr. 2025.