Funding for this research was provided by:
Shaanxi key research and development program (2018SF-261)
Received: 11 July 2019
Accepted: 12 July 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the First Affiliated Hospital of Xi’an Jiaotong University (XJTU1AF2018LSK-2018-131). A written informed consent was obtained from all participants.
: Not applicable.
: The authors declare no conflict of interest.