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Authors
Ohya, Hiroki
Watanabe, Jun https://orcid.org/0000-0002-7187-3664
Suwa, Hirokazu
Suwa, Yusuke
Ishibe, Atsushi
Masui, Hidenobu
Nagahori, Kaoru
Kunisaki, Chikara
Endo, Itaru
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Article History
Accepted: 17 June 2020
First Online: 23 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Ethical advisory Committee of Yokosuka Kyosai Hospital (No. 19-39) and the institutional review board of each participating hospital before the study was initiated. Due to the retrospective nature of the study, written informed consent was not obtained. We used the opt-out approach to disclose the study information.
