Sakamoto, Shinji
Takaki, Manabu
Okahisa, Yuko
Mizuki, Yutaka
Inagaki, Masatoshi
Ujike, Hiroshi
Mitsuhashi, Toshiharu
Takao, Soshi
Ikeda, Masashi
Uchitomi, Yosuke
Iwata, Nakao
Yamada, Norihito
Article History
Received: 30 September 2015
Revised: 24 November 2015
Accepted: 24 November 2015
First Online: 17 December 2015
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.