Azhar, Jahanzaib, Tahereh Mohammadabadi, Masroor Ellahi Babar, and Tanveer Hussain. “Milk Lactoferrin: A Probable Immunological Agent Against SARS-CoV-2 : A Review”. Basrah J. Agric. Sci. 33, no. 2 (October 20, 2020): 138–146. Accessed May 12, 2021. https://bjas.bajas.edu.iq/index.php/bjas/article/view/239.