Ohtsuki, Shozo http://orcid.org/0000-0001-8954-5709
Takahashi, Yuki
Inoue, Takao
Takakura, Yoshinobu
Nishikawa, Makiya
Article History
Received: 1 June 2017
Accepted: 2 October 2017
First Online: 20 October 2017
Competing Interests
: The authors declare that they have no competing interests.