Funding for this research was provided by:
Anhui Provincial Key Research and Development Program (1804b06020351)
Received: 13 April 2020
Accepted: 18 June 2020
First Online: 1 July 2020
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethics Committee of the First Affiliated Hospital of Anhui Medical University and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The consent to participate was not applicable for this study.
: Not applicable.
: The authors declare that they have no competing interests.