Sun, Ting-Ting
Cheng, Ning-Hai
Cao, Dong-Yan
Peng, Peng
Article History
Received: 10 August 2020
Accepted: 3 December 2020
First Online: 8 December 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Peking Union Medical College Hospital.
: Not applicable.
: The authors declare that they have no competing interests.