Received: 23 January 2021
Accepted: 22 April 2021
First Online: 6 May 2021
: This study was approved by the ethics review committee of Huashan Hospital. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional review board of Huashan Hospital and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards, and informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors have no conflicts of interest to declare that are relevant to the content of this article.