GÜLŞEN, Mustafa; BATTAL, Aydın; UYGURER, Can; BEYAN, Cengiz; BAĞCI, Sait; UYGUN, Ahmet; ARAÇOĞLU, Ergun; KARAEREN, Necmettin. Helicobacter pylori and cobalamin deficiency. Turkish Journal of Gastroenterology, [S. l.], v. 9, n. 2, p. 126–132, 1998. Disponível em: https://www.turkjgastroenterol.org/index.php/tjg/article/view/874. Acesso em: 1 jan. 2026.