Funding for this research was provided by:
National Natural Science Foundation of China (81870425, 81670567)
Fundamental Research Funds for the Central Universities
Received: 5 March 2020
Accepted: 13 March 2020
First Online: 18 March 2020
Ethics approval and consent to participate
: The ethics committee of the First Affiliated Hospital of Zhejiang University reviewed and approved this study. Written consent was obtained from each patient or his/her authorized representatives following a full explanation of the study.
: Not applicable.
: The authors declare that they have no competing interests.