Ishige, Takayuki
Nishimura, Motoi
Satoh, Mamoru
Fujimoto, Mai
Fukuyo, Masaki
Semba, Toshihisa
Kado, Sayaka
Tsuchida, Sachio
Sawai, Setsu
Matsushita, Kazuyuki
Togawa, Akira
Matsubara, Hisahiro
Kaneda, Atsushi
Nomura, Fumio
Article History
Received: 3 August 2015
Accepted: 27 January 2016
First Online: 19 February 2016
Competing interests
: The authors declare no competing financial interests.