Kırlı, İsmail, V. C. Yılmaz, C. Şahin, C. D. Salman, E. N. Yeniçeri, and H. Tunca. “Effect of Metformin Usage on Vitamin B12 Deficiency in Patients With Type 2 Diabetes Mellitus”. HEALTH SCIENCES QUARTERLY, vol. 5, no. 1, Jan. 2025, pp. 43-50, doi:10.26900/hsq.2580.