Kitamura, Akira
Nakayama, Yusaku
Shibasaki, Ai
Taki, Ayami
Yuno, Sachiko
Takeda, Kayo
Yahara, Masao
Tanabe, Naoki
Kinjo, Masataka
Article History
Received: 18 August 2015
Accepted: 1 December 2015
First Online: 13 January 2016
Competing interests
: The authors declare no competing financial interests.