Asif Sagheer, Sadaf Saghir, Muhammad Bilal Akbar, Qamar Sajad, Iqra Iqbal, “Association Between Serum Ferritin, Vitamin D Levels, and Glycemic Control in Patients with Type 2 Diabetes Mellitus”, Pakistan Journal of Medical & Health Sciences, vol. 17, no. 07, p. 228, Aug. 2023.