Ozaki, Yukinori
Tanabe, Yuko
Tamura, Nobuko
Ogura, Takuya
Kondoh, Chihiro
Miura, Yuji
Yoshimura, Kenichi
Kawabata, Hidetaka
Takano, Toshimi
Article History
Received: 11 October 2017
Accepted: 17 January 2018
First Online: 22 January 2018
Compliance with ethical standards
:
: The authors have no competing interests to declare.
: Approval for this retrospective study was obtained from the Ethics Committee of Toranomon Hospital.