Kubo, Kazuyuki
Takei, Hiroyuki
Hamahata, Atsumori
Matsumoto, Hiroshi
Sakurai, Hiroyuki
Article History
Received: 29 November 2017
Accepted: 6 February 2018
First Online: 5 March 2018
Compliance with ethical standards
:
: We have no financial interest to declare in relation to the content of this article.