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Authors
Wada, Hideo
Tominaga, Tetsuro
Nonaka, Takashi
To, Kazuo
Hamada, Kiyoaki
Araki, Masato
Sumida, Yorihisa
Takeshita, Hiroaki
Fukuoka, Hidetoshi
Tanaka, Kenji
Sawai, Terumitsu
Nagayasu, Takeshi
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Article History
Received: 2 July 2021
Accepted: 21 August 2021
First Online: 14 February 2022
Declarations
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: The authors declare no conflicts of interest in association with the present study.
: This study was performed in line with the principles of the 1964 Declaration of Helsinki and its later amendments. Approval was granted by the Clinical Research Review Boards of all participating hospitals.
: Informed consent was obtained in the form of a description of the study and the opt-out procedure on the websites of the participating hospitals.
