SUCHANDA DAS; ASHOK KUMAR; UMESH CHANDOLIA. A Hospital Based Prospective Study to Assess the Level of Vitamin B12 and Hemoglobin in Recurrent Aphthous Stomatitis Patients. International Journal of Health and Clinical Research, [S. l.], v. 4, n. 19, p. 128–130, 2021. Disponível em: https://www.ijhcr.com/index.php/ijhcr/article/view/3045. Acesso em: 4 mar. 2026.