Yamada, Suguru
Fujii, Tsutomu
Yokoyama, Yukihiro
Kawashima, Hiroki
Maeda, Osamu
Suzuki, Kojiro
Okada, Tohru
Ono, Eizaburo
Yamaguchi, Junpei
Takano, Nao
Takami, Hideki
Hayashi, Masamichi
Niwa, Yukiko
Hirooka, Yoshiki
Ito, Yoshiyuki
Naganawa, Shinji
Ando, Yuichi
Nagino, Masato
Goto, Hidemi
Kodera, Yasuhiro
Article History
Received: 5 February 2018
Accepted: 23 February 2018
First Online: 3 March 2018
Compliance with ethical standards
:
: All authors in this study have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.