Feng, Song
Liu, Na
Chen, Xiaoguang
Liu, Yufeng
An, Jindou
Article History
Received: 25 November 2019
Accepted: 23 March 2020
First Online: 7 April 2020
Ethics approval and consent to participate
: This study was conducted following the signing of informed consents from all participators and the approval by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University.
: Not applicable.
: The authors declare that they have no competing interests.