Funding for this research was provided by:
Beijing Municipal Administration of Hospitals (PX 2020047)
Article History
Received: 15 April 2020
Accepted: 21 October 2020
First Online: 2 November 2020
Compliance with ethical standards
:
: Drs. Peng Yuan, Lei Zhang, Shijie Li, Xun Li, Qi Wu have no conflicts of interest or financial ties to disclose.