Watanabe, Miki
Nakagawa, Ryuji
Naruto, Takuya
Kohmoto, Tomohiro
Suga, Ken-ichi
Goji, Aya
Kagami, Shoji
Masuda, Kiyoshi
Imoto, Issei
Article History
Received: 5 June 2016
Revised: 8 July 2016
Accepted: 31 July 2016
First Online: 15 September 2016
Competing interests
: The authors declare no conflict of interest.