Shan, Hui
Zhang, Er-Wei
Zhang, Peng
Zhang, Xiao-Dong
Zhang, Ning
Du, Peng
Yang, Yong
Funding for this research was provided by:
Beijing Natural Science Foundation (No. 7182058)
Article History
Received: 9 August 2019
Accepted: 31 October 2019
First Online: 12 November 2019
Ethics approval and consent to participate
: This research was approved by the Ethics Committee of Beijing Chaoyang Hospital. All methods were carried out in accordance with relevant guidelines and regulations. The study design was approved by the ethnic committee of our hospital, with informed consents obtained from all the participants.
: Not Applicable.
: The authors declare that they have no competing interests.