Yamamoto, Haruna
Lu, Jun
Oba, Shigeyoshi
Kawamata, Toyotaka
Yoshimi, Akihide
Kurosaki, Natsumi
Yokoyama, Kazuaki
Matsushita, Hiromichi
Kurokawa, Mineo
Tojo, Arinobu
Ando, Kiyoshi
Morishita, Kazuhiro
Katagiri, Koko
Kotani, Ai
Article History
Received: 21 October 2015
Accepted: 8 December 2015
First Online: 12 January 2016
Competing interests
: The authors declare no competing financial interests.