Funding for this research was provided by:
National Natural Science Foundation of China
Received: 5 November 2019
Accepted: 25 June 2020
First Online: 1 July 2020
Ethics approval and consent to participate
: This study has been approved by the Independent Ethics Committee of the Evaluation Committee of Shanghai Sixth People’s Hospital, and the written informed consent of volunteers has been obtained.
: Not applicable.
: The authors declare that they have no competing interests.