Cao, Qinxue
Wang, Ning
Ren, Lu
Tian, Jun
Yang, Shaoqin
Cheng, Hailing
Article History
Received: 13 December 2019
Accepted: 6 April 2020
First Online: 10 April 2020
Ethics approval and consent to participate
: This study was approved by the Ethic Committee of Huaihe Hospital of Henan University the Declaration of Helsinki Principles.
: Not applicable.
: The authors declare that they have no competing interests.