Sakai, Mai
Kita, Yuki F.
Kogi, Kazunobu
Shinohara, Masanori
Morisaka, Tadamichi
Shiina, Takashi
Inoue-Murayama, Miho
Article History
Received: 21 November 2014
Accepted: 16 March 2016
First Online: 6 April 2016
Competing interests
: The authors declare no competing financial interests.