Takatsu, Hiroyuki
Takayama, Masahiro
Naito, Tomoki
Takada, Naoto
Tsumagari, Kazuya
Ishihama, Yasushi http://orcid.org/0000-0001-7714-203X
Nakayama, Kazuhisa http://orcid.org/0000-0001-7701-7183
Shin, Hye-Won http://orcid.org/0000-0002-9138-9554
Article History
Received: 2 March 2017
Accepted: 9 September 2017
First Online: 10 November 2017
Competing financial interests
: The authors declare no competing financial interests.