Sato, Seidai
Kawamata, Yuka
Takahashi, Akiko
Imai, Yoshinori
Hanyu, Aki
Okuma, Atsushi
Takasugi, Masaki
Yamakoshi, Kimi
Sorimachi, Hiroyuki
Kanda, Hiroaki
Ishikawa, Yuichi
Sone, Saburo
Nishioka, Yasuhiko
Ohtani, Naoko
Hara, Eiji
Article History
Received: 20 October 2014
Accepted: 26 March 2015
First Online: 29 April 2015
Competing interests
: The authors declare no competing financial interests.