Serum Nɛ-Carboxymethyllysine as a Biomarker of Severity of Diabetic Retinopathy: A Cross-Sectional Study. Grn Int J Apl Med Sci [Internet]. 2026 Sep. 15 [cited 2026 Oct. 9];4(5):460-5. Available from: https://gijams.in/index.php/gijams/article/view/179