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Authors
Waqas, Muhammad
Liu, Fu-Hu https://orcid.org/0000-0002-2261-6899
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Funding
Funding for this research was provided by:
the National Natural Science Foundation of China (11575103)
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Article History
Received: 28 March 2019
Accepted: 12 January 2020
First Online: 28 January 2020
Compliance with ethical standards
:
: The authors declare that there are no conflicts of interest regarding the publication of this paper. The funders had no role in the design of the study; in the collection, analysis, or interpretation of the data; in the writing of the manuscript, or in the decision to publish the results.
: The authors declare that they are in compliance with ethical standards regarding the content of this paper.
