Al-Ahdal, Mohammed N., Ahmed Ali Al-Qahtani, and Salvatore Rubino. “Coronavirus Respiratory Illness in Saudi Arabia”. The Journal of Infection in Developing Countries 6, no. 10 (October 19, 2012): 692–694. Accessed April 24, 2024. https://www.jidc.org/index.php/journal/article/view/23103889.