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Authors
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Funding
Funding for this research was provided by:
Research Grants Council, University Grants Committee (CityU 21302018, R6015-18)
City University of Hong Kong (9610388)
National Natural Science Foundation of China (11474212)
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Article History
Received: 9 May 2019
Accepted: 12 September 2019
First Online: 1 October 2019
Competing Interests
: The authors declare no competing interests.
