Yamauchi, Motohiro
Shibata, Atsushi
Suzuki, Keiji
Suzuki, Masatoshi
Niimi, Atsuko
Kondo, Hisayoshi
Miura, Miwa
Hirakawa, Miyako
Tsujita, Keiko
Yamashita, Shunichi
Matsuda, Naoki
Article History
Received: 27 July 2016
Accepted: 28 December 2016
First Online: 3 February 2017
Competing interests
: The authors declare no competing financial interests.