Funding for this research was provided by:
Capital Health Development Fund (201614035)
Chinese Cardiovascular Association-V.G fund (2017-CCA-VG-017)
Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences (2016-I2M-1-011)
Article History
Received: 8 January 2021
Accepted: 22 January 2021
First Online: 13 February 2021
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.