Nakahara, Kiyoshi
Adachi, Ken
Kawasaki, Keisuke
Matsuo, Takeshi
Sawahata, Hirohito
Majima, Kei
Takeda, Masaki
Sugiyama, Sayaka
Nakata, Ryota
Iijima, Atsuhiko
Tanigawa, Hisashi
Suzuki, Takafumi
Kamitani, Yukiyasu http://orcid.org/0000-0002-9300-8268
Hasegawa, Isao
Article History
Received: 2 July 2015
Accepted: 4 May 2016
First Online: 10 June 2016
Competing interests
: The authors declare no competing financial interests.