Yan, Junfang
Guan, Yichun http://orcid.org/0000-0002-6255-2551
Fan, Hongfang
Mu, Mingkun
Sun, Simin
Geng, Wenjun
Zheng, Wei
Xiao, Zhiying
Article History
Received: 14 April 2019
Accepted: 4 July 2019
First Online: 20 July 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of The Third Affiliated Hospital of Zhengzhou University.
: Not applicable.
: The authors declare that they have no competing interests.