Funding for this research was provided by:
Science Fund for Youth in Peking Union Medical College (2017310004)
Article History
Received: 21 November 2019
Accepted: 13 May 2020
First Online: 6 July 2020
Compliance with ethical standards
:
: Xianlin Han, Rui Sun, Jiawen Yu, Yifan Zhang, and Zhikai Liang have no conflicts of interest or financial ties to disclose.