Nakagawa, Seishu
Sugiura, Motoaki
Sekiguchi, Atsushi
Kotozaki, Yuka
Miyauchi, Carlos Makoto
Hanawa, Sugiko
Araki, Tsuyoshi
Takeuchi, Hikaru
Sakuma, Atsushi
Taki, Yasuyuki
Kawashima, Ryuta
Article History
Received: 8 June 2016
Accepted: 9 September 2016
First Online: 27 September 2016
Competing interests
: The authors declare no competing financial interests.