Funding for this research was provided by:
National Natural Science Foundation of China (81600680)
Capital Foundation of Medical Development (201614035)
CAMS Major Collaborative Innovation Project (2016-I2M-1-011)
Received: 29 November 2019
Accepted: 2 May 2020
First Online: 12 May 2020
Ethics approval and consent to participate
: Informed consent was obtained from all participants included in the study. The study protocol complied with the Declaration of Helsinki and was approved by hospital’s ethical review board (FuWai Hospital & National Center for Cardiovascular Diseases, Beijing, China).
: Not applicable.
: The authors declare that they have no competing interests.