Kawahara, Teppei http://orcid.org/0000-0001-5140-4724
Fujiwara, Takeshi
Kagaya, Noritaka
Shin-ya, Kazuo
Article History
Received: 20 September 2017
Revised: 16 November 2017
Accepted: 17 November 2017
First Online: 18 January 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.