Funding for this research was provided by:
the independent project of Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences (Z0603)
National Natural Science Foundation of China (81230086)
National Natural Science Foundation for Young Scholars of China (81001583)
the independent project of China Academy of Chinese Medical Sciences (201904)
Received: 7 May 2019
Accepted: 24 October 2019
First Online: 6 November 2019
Ethics approval and consent to participate
: The study was performed after obtaining the approval of the ethics committee of Guang’anmen Hospital, affiliated with China Academy of Chinese Medical Sciences. Written informed consent was obtained from each participant at the time of enrollment.
: Not applicable.
: The authors declare that they have no competing interests.