Received: 5 February 2017
Accepted: 22 February 2018
First Online: 27 February 2018
: The current study followed the guidelines of the National Institutes of Health Guide for the Care and Use of Laboratory Animals. The mice protocols were approved by the University of Nagasaki Animal Studies Committee. (Approval number: 1501141191).
: Not applicable.
: The authors declare that they have no competing interests.
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