Nogawa, Toshihiko
Kato, Naoki
Shimizu, Takeshi
Okano, Akiko
Futamura, Yushi
Takahashi, Shunji
Osada, Hiroyuki
Article History
Received: 10 May 2017
Revised: 4 July 2017
Accepted: 27 July 2017
First Online: 13 September 2017
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.