DHAYAL, R. K.; VISHNOI, S. K.; JORA, R.; CHOUDHARY, S. Prevalence of helicobacter pylori infection in children with Vitamin B12 Deficiency - A cross-sectional observational study. Asian Journal of Medical Sciences, [S. l.], v. 12, n. 7, p. 42–46, 2021. DOI: 10.3126/ajms.v12i7.35351. Disponível em: https://www.nepjol.info/index.php/AJMS/article/view/35351. Acesso em: 6 may. 2024.