Motoyama, Daisuke
Matsushita, Yuto
Watanabe, Hiromitsu
Tamura, Keita
Ito, Toshiki
Sugiyama, Takayuki
Otsuka, Atsushi
Miyake, Hideaki
Article History
Received: 14 November 2018
Accepted: 18 January 2019
First Online: 2 February 2019
Compliance with ethical standards
:
: Authors Motoyama, Matsushita, Watanabe, Tamura, Ito, Sugiyama, Otsuka and Miyake declare that they have no conflict of interest.
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of our institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Formal consent from the patients was not required for this study.