Hirota-Takahata, Yuki
Kurosawa, Emi
Ishimoto, Yoko
Iwadate, Yuko
Kizuka, Masaaki
Chiba, Jun
Hasegawa, Toru
Tanaka, Masahiro
Kobayashi, Hideki
Article History
Received: 12 May 2016
Revised: 24 June 2016
Accepted: 7 July 2016
First Online: 17 August 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.