Toriumi, Naohisa
Kaneda, Makoto
Hatakeyama, Naoki
Manabe, Hiromi
Okajima, Kazuki
Sakurai, Yukari
Yamamoto, Masayo
Sarashina, Takeo
Ikuta, Katsuya
Azuma, Hiroshi
Article History
Received: 26 October 2017
Revised: 12 March 2018
Accepted: 12 March 2018
First Online: 5 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.