Harada, Haruhito
Hayashi, Takeharu
Nishi, Hirofumi
Kusaba, Ken
Koga, Yoshinori
Koga, Yasutoshi
Nonaka, Ikuya
Kimura, Akinori
Article History
Received: 8 September 2017
Revised: 7 October 2017
Accepted: 15 October 2017
First Online: 22 November 2017
Compliance with ethical standards
:
: The authors declare that they have no competing interests.