Saitoh, Masakazu http://orcid.org/0000-0001-8666-6353
Ogawa, Masumi
Kondo, Hisae
Suga, Kiichi
Takahashi, Tetsuya
Itoh, Haruki
Tabata, Yoichiro
Article History
Received: 25 June 2020
Accepted: 14 October 2020
First Online: 19 October 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board at the Meisei-kai Toyo Clinic, Chiba, Japan, and informed consent was obtained before data collection. The ethics committee granted approval to waive the requirement for written informed consent for the additional follow-up from 2018 to 2020 because of the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no competing interests.