Kawanaka, Yusuke http://orcid.org/0000-0001-8494-4970
Ando, Kumiko
Ishikura, Reiichi
Katsuura, Takayuki
Wakata, Yuki
Kodama, Hiroshi
Takaki, Haruyuki
Takada, Yoshihiro
Ono, Junichiro
Yamakado, Koichiro
Article History
Received: 29 August 2018
Accepted: 26 December 2018
First Online: 22 January 2019
Compliance with ethical standards
:
: No author has any conflict of interest to declare.
: All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This retrospective study was approved by our institutional review board.