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Authors
Lv, Nai-xia
Tao, Jing-cong
Li, Hong-ping
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Funding
Funding for this research was provided by:
Doctoral Scientific Research Foundation of Xingyi Normal University For Nationalities (Nos.18XYBS01)
National Natural Science Foundation of China (Nos. 21808092)
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Article History
Received: 13 April 2019
Accepted: 25 July 2019
First Online: 10 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
