GÜMÜRDÜLÜ, Yüksel; SERİN, Ender; ÖZER, Birol; KAYASELÇUK, Fazilet; KUL, Kemal; PATA, Cengiz; GÜÇLÜ, Mustafa; GÜR, Gürden; BOYACIOĞLU, Sedat. Predictors of vitamin B-12 deficiency: Age and helicobacter pylori load of antral mucosa. Turkish Journal of Gastroenterology, [S. l.], v. 14, n. 1, p. 44–49, 2003. Disponível em: https://www.turkjgastroenterol.org/index.php/tjg/article/view/1235. Acesso em: 1 jan. 2026.