A Retrospective Study On Diabetes Mellitus, Metformin, And Head And Neck Cancer. Journal of Carcinogenesis, [S. l.], v. 25, n. 1, p. 266–271, 2026. DOI: 10.64149/J.Carcinog.25.1.266-271. Disponível em: https://carcinogenesis.com/index.php/JOC/article/view/1862. Acesso em: 1 may. 2026.