Funding for this research was provided by:
Shanghai Municipal Health Bureau (20194Y0210)
Received: 3 April 2021
Accepted: 20 May 2021
First Online: 7 June 2021
: This study has been approved by the Ethics Committee of Shuguang Hospital, Shanghai University of Traditional Chinese Medicine (approval No. 2020-801-08-01). During recruitment, we will obtain the written informed consent of each subject.
: This article does not contain any personal details, images or videos, and all authors have read and approved the final version of this article.
: The authors declare that they have no competing interests.