Funding for this research was provided by:
Natural Science Foundation of Jiangsu Province (BK20180274)
Received: 17 February 2020
Accepted: 3 August 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the First Affiliated Hospital of Dalian Medical University. Written informed consent for publication was obtained from all patients.
: Written informed consent was obtained from the patients and legal guardian for the publication of these patients.
: The authors declare that they have no conflicts of interest.