Ohkuma, Toshiaki
Nakamura, Udai
Iwase, Masanori
Ide, Hitoshi
Fujii, Hiroki
Jodai, Tamaki
Kaizu, Shinako
Kikuchi, Yohei
Idewaki, Yasuhiro
Sumi, Akiko
Hirakawa, Yoichiro
Kitazono, Takanari
Article History
Received: 3 February 2016
Revised: 11 March 2016
Accepted: 17 March 2016
First Online: 2 June 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.