Komine, Shoichi
Akiyama, Kentaro
Warabi, Eiji
Oh, Sechang
Kuga, Keisuke
Ishige, Kazunori
Togashi, Shinji
Yanagawa, Toru
Shoda, Junichi
Article History
Received: 29 June 2017
Accepted: 5 September 2017
First Online: 20 September 2017
Competing Interests
: The authors declare that they have no competing interests.