Funding for this research was provided by:
Applied Basic Research Key Project of Hebei Province (No.GL200809)
Text and Data Mining valid from 2018-07-06
Received: 13 March 2017
Accepted: 28 June 2018
First Online: 6 July 2018
: This study was approved by the Local Committee of Animal Use and Protection of Hebei Medical University and performed according to its Guidelines for the Care and Use of Laboratory Animals.
: Not applicable.
: The authors declare that they have no competing interests.
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