Kubo, Ken-ichi
Paape, Timothy
Hatakeyama, Masaomi
Entani, Tetsuyuki
Takara, Akie
Kajihara, Kie
Tsukahara, Mai
Shimizu-Inatsugi, Rie
Shimizu, Kentaro K.
Takayama, Seiji
Article History
Received: 3 June 2014
Accepted: 17 October 2014
First Online: 8 January 2015
Competing interests
: The authors declare no competing financial interests.