Zare Marzouni, Hadi, ALi Dashtgard, and Esmaeil Hamounpeyma. “Ascending and Descending of Coronavirus Disease 2019 (COVID-19)”. Galen Medical Journal 9 (April 10, 2020): e1880. Accessed April 19, 2025. https://journals.salviapub.com/index.php/gmj/article/view/1880.