Funding for this research was provided by:
National Natural Science Foundation of China (81973424)
National Science Foundation of Sri Lanka (1442190)
CAMS Innovation Fund for Medical Sciences (2016-I2M-3-016)
EU grant DISCO (613513)
Received: 14 January 2020
Accepted: 18 May 2020
First Online: 18 June 2020
Ethics approval and consent to participate
: Not applicable.
: All authors consent to the publication of the manuscript.
: The authors declare no competing interests.