Abe, Hikaru
Kawada, Manabu
Igarashi, Masayuki
Ohba, Shun-ichi
Hayashi, Chigusa
Sakashita, Chiharu
Watanabe, Takumi
Shibasaki, Masakatsu
Article History
Received: 5 June 2017
Revised: 16 August 2017
Accepted: 24 August 2017
First Online: 11 October 2017
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.