1. Johns Hopkins Coronavirus Resource Center,2020
2. World Health Organization,2020
3. “Shortage of Personal Protective Equipment Endangering Health Workers Worldwide.” World Health Organization. Available at: www.who.int/news-room/detail/03-03-2020-shortage-of-personal-protective-equipment-endangering-health-workers-worldwide. Accessed June 26, 2020.
4. Not Enough Face Masks are Made in America to Deal With Coronavirus;Noguchi,2020
5. Centers for Disease Control and Prevention,2020