Hayashi, Tatsuya
Tokihiro, Tetsuji
Kurihara, Hiroki
Yasuda, Kenji http://orcid.org/0000-0002-1433-4509
Article History
Received: 23 February 2017
Accepted: 31 October 2017
First Online: 13 November 2017
Competing Interests
: The authors declare that they have no competing interests.