Ooi, Kazuhiro
Inoue, Nobuo
Matsushita, Kazuhiro
Yamaguchi, Hiro-o
Mikoya, Tadashi
Kawashiri, Shuichi
Tei, Kanchu
Article History
Received: 22 December 2018
Accepted: 11 September 2019
First Online: 4 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: Approval was given by the Hokkaido University Hospital Ethics Committee (Ref. No 010-0285).
: All patients are informed about the research purpose and agree to use their clinical data for this study.