B. R. . Abbas, S. E. A. Nuraldin, S. S. . Azeez, and K. F. . Dizaye, “Vitamin D Level and Its Correlation to Certain Biochemical Markers in Patients with Chronic Kidney Disease in Erbil City”, J Neonatal Surg, vol. 14, no. 30S, pp. 591–597, Jun. 2025.