Al-Eidan, F. A., Alnaser, M., Aljohani, S. M., Al Johani, M., El Hafi, A., Al Jahdaly, A., & Al Khurmi, A. (2017). Increasing antimicrobial resistance of Helicobacter pylori infection among Saudi patients undergoing upper gastrointestinal endoscopy. Italian Journal of Medicine, 11(3), 318–321. https://doi.org/10.4081/itjm.2017.804