Funding for this research was provided by:
National Natural Science Foundation of China (81802985, 81772859)
Received: 24 March 2021
Accepted: 13 May 2021
First Online: 14 July 2021
: All procedures performed in studies involving human participants were in accordance with 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 the patients for publication of this article and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: All authors declare that they have no conflicts of interest concerning this article.