Elbaz, Abdulkareem K., et al. “Detection of VacA Gene Alleles Frequency in Helicobacter Pylori Strains from Patients With Gastric Diseases in Zliten City Libya”. Libyan Journal of Medical Research, vol. 17, no. 2, Dec. 2023, pp. 77-86, https://doi.org/10.54361/ljmr.v17i2.09.