Shimojima, Keiko
Higashiguchi, Takafumi
Kishimoto, Kanako
Miyatake, Satoko
Miyake, Noriko
Takanashi, Jun-ichi
Matsumoto, Naomichi
Yamamoto, Toshiyuki http://orcid.org/0000-0002-9484-3505
Article History
Received: 9 August 2017
Revised: 19 September 2017
Accepted: 21 September 2017
First Online: 9 November 2017
Competing interests
: The authors declare no conflict of interest.