Mani, V., M. Kandregula, G. Venkatasan, and M. N. “Prevalence of Vitamin D Deficiency in Diabetic Neuropathy Patients in the South Indian Population”. Biomedical Sciences and Clinical Medicine, vol. 65, no. 1, Dec. 2025, pp. 11-22, https://he01.tci-thaijo.org/index.php/CMMJ-MedCMJ/article/view/279796.