Yoshikawa, Masahiro
Takase, Osamu
Tsujimura, Taro http://orcid.org/0000-0002-3281-0150
Sano, Etsuko
Hayashi, Matsuhiko
Takato, Tsuyoshi
Hishikawa, Keiichi
Article History
Received: 26 September 2017
Accepted: 19 March 2018
First Online: 28 March 2018
Competing Interests
: The authors declare no competing interests.