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Authors
Liu, Chao https://orcid.org/0000-0002-0552-6672
Liu, Yang https://orcid.org/0000-0003-2553-9515
Ma, Yunzhu https://orcid.org/0000-0002-8163-507X
Liu, Wensheng https://orcid.org/0000-0002-3616-7609
Yang, Yuling https://orcid.org/0000-0001-9609-8433
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Funding
Funding for this research was provided by:
The National Basic Research Program of China (61xxxx02)
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Article History
Received: 12 August 2018
Accepted: 12 December 2018
First Online: 18 December 2018
Compliance with ethical standards
:
: The authors declared that they have no conflict of interest.
Free to read: This content has been made available to all.
