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Article History

Received: 17 July 2018

Accepted: 10 October 2018

First Online: 23 October 2018

Ethics approval and consent to participate

: All procedures and animal handling were done according to the guidelines described in the Japanese Guide for the Care and Use of Laboratory Animals as approved by the Animal Care and Use Committee, University of Occupational and Environmental Health, Japan.

: Not required as no human data presented.

: The authors declare that they have no competing interests.

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