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Availability of data and materials
Not applicable.

Financial support and sponsorship
This study was supported by grants from the National Key Research and Development Program
(2016YFF0101405 and 2016YFC0902400), the State Key Program of National Natural Science of China
(81530077 and 81830102), the National Natural Science Foundation of China (81602543, 81672839,
81572823, 81772578, 81772551, and 81872355), the Strategic Priority Research Program of the Chinese
Academy of Sciences (XDA12020105 and XDA12020103), the Shanghai Municipal Health Commission
Collaborative Innovation Cluster Project (2019CXJQ02), Projects from the Shanghai Science and
Technology Commission (19441905000) and Projects from Shanghai Municipal Key Clinical Specialty.

Conflicts of interest
All authors declared that there are no conflicts of interest.

Ethical approval and consent to participate
Not applicable.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2020.

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