Khalid Usman, Rab Nawaz Khan, Sahibzada Imtiaz Ahmad, Saleh Ahmad, Kifayat Ali, Tahir Ghafar. “The Prevalence of Vitamin B12 Deficiency in Type 2 Diabetes With Neuropathy; A Multi-Center Study”. Pakistan Journal of Medical & Health Sciences 17, no. 07 (July 30, 2023): 168. Accessed December 5, 2025. https://pjmhsonline.com/index.php/pjmhs/article/view/6554.