Sugawara, Katsuaki
Yamamura, Norifumi
Matsuda, Keita
Norimatsu, Wataru
Kusunoki, Michiko
Sato, Takafumi
Takahashi, Takashi
Article History
Received: 3 July 2017
Revised: 28 November 2017
Accepted: 29 November 2017
First Online: 9 February 2018
Competing interests
: The authors declare no conflict of interest.