Li, Yan
Li, Xiaowen
Zhang, Yinhua
Zhang, Leimin
Wu, Qingqing
Bai, Zhaorun
Si, Jin
Zuo, Xuebing
Shi, Ning
Li, Jing
Chu, Xi
Article History
Received: 14 March 2019
Accepted: 13 January 2020
First Online: 30 January 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Xuanwu Hospital Capital Medical University. All participants signed informed consent forms.
: Not applicable.
: The authors declare that they have no competing interests.