Impact of vitamin B12 deficiency on Hematological parameters and Its relationship with Helicobacter pylori infection in Derna City, Libya. Scientific Journal for Publishing in Health Research and Technology, [S. l.], v. 2, n. 2, p. 122–132, 2026. DOI: 10.65420/sjphrt.v2i2.128. Disponível em: https://sjphrt.com.ly/index.php/sjphrt/article/view/128. Acesso em: 17 may. 2026.