Higuchi, Shinya http://orcid.org/0000-0001-8686-3154
Matsunaga, Iwao
Koga, Kiyokazu
Teshima, Eiichi
Nakashima, Atsuhiro
Tominaga, Ryuji
Ito, Tsuyoshi
Article History
Received: 2 August 2017
Accepted: 19 January 2018
First Online: 13 March 2018
Compliance with ethical standards
:
: Shinya Higuchi, Iwao Matsunaga, Kiyokazu Koga, Eiichi Teshima, Atsuhiro Nakashima, Ryuji Tominaga, and Tsuyoshi Ito have no conflicts of interest to disclose.