Hoxha, Bianka, and Arvjola Hodaj. “Potential Role of Lactoferrin and Heparin in COVID-19: A Review”. European Scientific Journal, ESJ 17, no. 14 (April 30, 2021): 14. Accessed November 22, 2024. https://eujournal.org/index.php/esj/article/view/14222.