Takasawa, Akira
Murata, Masaki
Takasawa, Kumi
Ono, Yusuke
Osanai, Makoto
Tanaka, Satoshi
Nojima, Masanori
Kono, Tsuyoshi
Hirata, Koichi
Kojima, Takashi
Sawada, Norimasa
Article History
Received: 22 April 2016
Accepted: 31 August 2016
First Online: 19 September 2016
Competing interests
: The authors declare no competing financial interests.