Takechi, Hitomi
Fujikuni, Nobuaki
Tanabe, Kazuaki
Hattori, Minoru
Amano, Hironobu
Noriyuki, Toshio
Nakahara, Masahiro
Article History
Received: 28 March 2019
Accepted: 28 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: This retrospective study was approved by the Ethics Committee of Onomichi General Hospital (No. OJH-201892). The waiver of individual patient informed consent was obtained due to minimal risk nature of this study.
: Not applicable.
: The authors declare that they have no competing interests.