Chen, Junchen
Zhang, Chen
Guo, Yanxiu
Chang, Xiaohong
Ma, Ruiqiong
Ye, Xue
Cheng, Hongyan
Li, Yi
Cui, Heng
Article History
Received: 8 February 2020
Accepted: 25 March 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: The Medical Ethics Committee of Peking University People’s Hospital approved the study (no. 2016PHC078).
: Not applicable.
: The authors declare that they have no competing interests.