Received: 11 October 2020
Accepted: 24 February 2021
First Online: 6 March 2021
: All procedures performed in studies involving human participants were carried out by the ethical standards of the institutional and/or national research committee, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from all participants, and the study was approved by the Institutional Review Board of Fujian Medical University (number: 201495).
: Not applicable.
: The author(s) declare that there are no conflicts of interest.