Ammar K. Madlool. Study of Vitamin B12 Status among Older Adult Iraqi Patients with Diabetic Retinopathy. J. K. Chem. Sci. [Internet]. 2025 Jun. 20 [cited 2026 Oct. 12];4(2):408-17. Available from: https://journal.uokufa.edu.iq/index.php/jkcs/article/view/16413