Du, Juan
Ruan, Xiangyan http://orcid.org/0000-0001-7777-247X
Jin, Fengyu
Li, Yanglu
Cheng, Jiaojiao
Gu, Muqing
Mueck, Alfred Otto
Funding for this research was provided by:
Beijing Natural Science Foundation (No. 7202047)
Capital's Funds for Health Improvement and Research (No. 2020-2-2112)
Beijing Municipal Administration of Hospitals’ Ascent Plan (DFL20181401)
Article History
Received: 26 November 2020
Accepted: 9 February 2021
First Online: 18 February 2021
Ethics approval and consent to participate
: This study was approved by our hospital ethics committee (NO. 2017-KY-020-01).
: Not applicable.
: The authors declare that they have no competing interests.