Funding for this research was provided by:
The Ministry of Health, Labour, and Welfare of Japan (16H05366)
Received: 13 July 2017
Accepted: 19 January 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee and the committee on animal experimentation of the University of Tokyo Graduate School of Medicine. Human normal dermal fibroblasts were purchased and used; therefore, consent to participate was not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
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