Funding for this research was provided by:
National Planning Office of Philosophy and Social Science (No. 18BGL235 and No. 20AZD059)
Science and Technology Committee of Shanghai Municipality Soft Science Research Plans (No. 20692109600)
Received: 31 March 2021
Accepted: 16 August 2021
First Online: 7 September 2021
: This research did not access individual patient data; thus, ethics approval and patient informed consent were not required.
: Not applicable.
: The authors have reported no conflicts of interest related to this work.