Funding for this research was provided by:
JSPS KAKENHI (JP15K09945)
Otsuka-Toshimi Scholarship Foundation
Received: 26 March 2018
Accepted: 29 June 2018
First Online: 26 September 2018
Ethicas approval and consent to participate
: The recent research was approved by the ethic committee from Gunma University Hospital.
: The authors declare they have no conflict of interest.
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