Funding for this research was provided by:
National Financial Appropriation Research Project (2017YFC1309100)
National Scientific Foundation of China (81971695)
Received: 15 June 2020
Accepted: 14 October 2020
First Online: 20 October 2020
Ethics approval and consent to participate
: The study was approved by the institutional review board of the First Affiliated Hospital of China Medical University. Informed consent was waived due to the nature of the retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.