摘要
Dear Editor,The outbreak of coronavirus disease 2019(COVID-19)has so far caused over 108.2 million confirmed cases and over 2.3 million deaths all over the world as of February 14,2021.1 Among in-hospital patients with COVID-19,the mortality was approximately 28%,however,the percentage increased to over 60%among critically ill patients,and over 80%among those who require mechanical ventilation.2 Treatment of these severe patients is becoming one of the major challenges.
基金
This work was supported by the Sichuan Science and Technology Program(Project No.2019YJ0139)
1.3.5 project for disciplines of excellence,West China Hospital,Sichuan University(Project No.ZYGD18015).
