RAVI, K.; JOSEPH, J.; THOMAS, D. M. Helicobacter pylori infection and vitamin B-12 deficiency- A cross sectional study. Asian Journal of Medical Sciences, [S. l.], v. 8, n. 4, p. 16–20, 2017. DOI: 10.3126/ajms.v8i4.17280. Disponível em: https://nepjol.info/index.php/AJMS/article/view/17280. Acesso em: 25 nov. 2024.