Maeda, Rina
Higuchi, Takeshi
Okuhara, Kenta
Kikuchi, Ryohei
Takahara, Atsushi
Ober, Christopher K
Jinnai, Hiroshi
Hayakawa, Teruaki
Article History
Received: 14 December 2015
Revised: 8 January 2016
Accepted: 16 January 2016
First Online: 24 February 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.