Increasing antimicrobial resistance of Helicobacter pylori infection among Saudi patients undergoing upper gastrointestinal endoscopy. Italian Journal of Medicine, [S. l.], v. 11, n. 3, p. 318–321, 2017. DOI: 10.4081/itjm.2017.804. Disponível em: https://www.italjmed.org/ijm/article/view/itjm.2017.804. Acesso em: 6 jul. 2025.