Guo, Zongsheng
Yang, Xinchun http://orcid.org/0000-0002-0584-2499
Funding for this research was provided by:
The Beijing Key Laboratory funding (2017GXY-KFKT-03)
Article History
Received: 16 January 2019
Accepted: 21 October 2019
First Online: 26 November 2019
Ethics approval and consent to participate
: The study complied with the Declaration of Helsinki. The ethics committee of Beijing Chao-Yang Hospital approved the study protocol, and written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.