Matsuura, Hiroshi http://orcid.org/0000-0002-4803-976X
Arase, Shigeki http://orcid.org/0000-0001-7912-8231
Hori, Yasuhide http://orcid.org/0000-0002-0053-995X
Article History
Received: 18 July 2018
Accepted: 22 September 2018
First Online: 8 October 2018
Compliance with standards
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: There are no conflicts of interest to declare.