Funding for this research was provided by:
Japan Society for the Promotion of Science (JP15K09181)
Received: 15 November 2017
Accepted: 8 February 2018
First Online: 27 February 2018
Ethics approval and consent to participate
: The study was approved by the Sapporo Medical University Hospital’s ethics board (approval number, 292–35). All experiments using mice were conducted according to the regulations of the Sapporo Medical University Animal Care and Use Committee.
: Not applicable.
: The authors declare that they have no competing interests.
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