Funding for this research was provided by:
National Natural Science Foundation of China (71874005)
Major Project of the National Social Science Fund of China (21&ZD187)
Received: 21 October 2021
Accepted: 7 March 2022
First Online: 19 April 2022
: The ethics application for collecting data on human subjects was approved and updated annually by the Peking University’s Institutional Review Board (No: IRB00001052-19046). Patients were contacted by the study survey coordinator to confirm eligibility and obtain patient consent.
: Not applicable.
: The authors declare that they have no competing interests.