Funding for this research was provided by:
Natural Science Foundation of China (81470466)
Received: 16 May 2020
Accepted: 14 September 2020
First Online: 21 September 2020
Ethics approval and consent to participate
: The present study complied with the Declaration of Helsinki and was approved by the ethics committee of Fuwai Hospital (the chief institute) and all other participating organizations, and all patients provided written informed consent before entering this study.
: Not applicable.
: No authors have any conflicts of interest to disclose.