Nagasaka, Kazuaki
Yamanaka, Kazunori
Ogawa, Shinya
Takamatsu, Hiroyuki
Higo, Noriyuki http://orcid.org/0000-0002-3448-1696
Article History
Received: 11 November 2016
Accepted: 18 May 2017
First Online: 27 June 2017
Competing Interests
: The authors declare that they have no competing interests.