Nakano, Masayuki
Tamura, Yasuhisa
Yamato, Masanori
Kume, Satoshi
Eguchi, Asami
Takata, Kumi
Watanabe, Yasuyoshi
Kataoka, Yosky
Article History
Received: 11 July 2016
Accepted: 6 January 2017
First Online: 14 February 2017
Competing interests
: The authors declare no competing financial interests.