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Authors
Okagawa, Yutaka
Sumiyoshi, Tetsuya
Imagawa, Takayuki
Sakano, Hiroya
Tamura, Fumito
Arihara, Yohei
Kanari, Yusuke
Sakurada, Akira
Oiwa, Shutaro
Jin, Takashi
Tomita, Yusuke
Minami, Shinya
Hisai, Hiroyuki
Muramatsu, Hirohito
Katsuki, Shinichi
Maeda, Masahiro
Kondo, Hitoshi
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Article History
Received: 29 May 2023
Accepted: 11 July 2023
First Online: 18 July 2023
Declarations
:
: The authors declare no competing interests.
: This retrospective cohort study was conducted at nine hospitals in Japan, in compliance with the principles of the Declaration of Helsinki of 1964 and later versions. The study protocol was approved by the institutional review board of Tonan Hospital (approval number 547) and all participating institutions. This study was registered on the University Hospital Medical Information Network (Registration number UMIN 000046411). Written informed consent for EGD was obtained from all the patients. All participants were given opportunities to decline participation in this study using the opt-out method on each participating hospital’s website.
: Not applicable
