Wei, Yijuan
Jia, Fei
Hou, Ping
Zha, Kaiji
Pu, Shi
Gao, Jianbo
Article History
Received: 9 September 2019
Accepted: 23 January 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: This study has been approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University. A consent to participate has been signed by each participant.
: Consent to publication has been signed by each participant.
: The authors declare that they have no competing interests.