Funding for this research was provided by:
the Scientific Research Project of Human Health Committee (20200357)
National Natural Science Foundation of China (81672176, 81871783)
the Fundamental Research Funds for the Central Universities of Central South University (2020zzts288)
Received: 14 May 2020
Accepted: 29 July 2020
First Online: 6 August 2020
Ethics approval and consent to participate
: This retrospective study was approved by the Ethics Committee on Human Research of the Second Xiangya Hospital of Central South University, and written informed consent was obtained from the patients or their legal guardians.
: This retrospective study was well understood and agreed by all the included patients, which was recorded in the consent for publication.
: The authors declare that they have no competing interests. No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article.