ZhangS., LinY., LiY., ZhangW., FengQ., and LuoH. “How Did We Protect Ourselves During Intubation for a COVID-19 Patient in the Context of PPE Shortage?”. The Journal of Infection in Developing Countries, Vol. 15, no. 12, Dec. 2021, pp. 1808-12, doi:10.3855/jidc.13279.