Kamel, S. S., P. E. S. Salem, A. Swidan, and S. Ibrahim. “Association Between Serum Vitamin D, Insulin Resistance and Severity of Liver Fibrosis in Chronic Hepatitis C Patients”. Asian Journal of Applied Sciences, vol. 6, no. 2, Apr. 2018, https://ajouronline.com/index.php/AJAS/article/view/5280.