Ito, Hidetaka
Kim, Jong-Myong
Matsunaga, Wataru
Saze, Hidetoshi
Matsui, Akihiro
Endo, Takaho A.
Harukawa, Yoshiko
Takagi, Hiroki
Yaegashi, Hiroki
Masuta, Yukari
Masuda, Seiji
Ishida, Junko
Tanaka, Maho
Takahashi, Satoshi
Morosawa, Taeko
Toyoda, Tetsuro
Kakutani, Tetsuji
Kato, Atsushi
Seki, Motoaki
Article History
Received: 14 October 2015
Accepted: 25 February 2016
First Online: 15 March 2016
Competing interests
: The authors declare no competing financial interests.