Mii, Yusuke http://orcid.org/0000-0002-1907-5665
Yamamoto, Takayoshi http://orcid.org/0000-0001-8028-6050
Takada, Ritsuko
Mizumoto, Shuji
Matsuyama, Makoto
Yamada, Shuhei
Takada, Shinji http://orcid.org/0000-0003-4125-6056
Taira, Masanori
Article History
Received: 29 August 2016
Accepted: 3 November 2017
First Online: 7 December 2017
Competing interests
: The authors declare no competing financial interests.