Kubota, Yuka
Hatakeyama, Shingo http://orcid.org/0000-0002-0026-4079
Yoneyama, Tohru
Yoneyama, Mihoko Sutoh
Hamano, Itsuto
Konishi, Sakae
Okamoto, Teppei
Yamamoto, Hayato
Yoneyama, Takahiro
Hashimoto, Yasuhiro
Ohyama, Chikara
Funding for this research was provided by:
Japan Society for the Promotion of Science (18K09157)
Japan Society for the Promotion of Science (19H05556, 20K09517, 20K18107, 20K18106)
Article History
Received: 15 January 2021
Accepted: 22 February 2021
First Online: 6 March 2021
Compliance with ethical standards
:
: None of the authors have any conflicts of interest to declare.
: The present retrospective, multicenter study was performed in accordance with the ethical standards of the Declaration of Helsinki, and it was approved by the ethics review board of the Hirosaki University School of Medicine (authorization number: 2018–062) and all hospitals. Pursuant to the provisions of the ethics committee and the ethics guidelines in Japan, written informed consent is not required for public disclosure of study information in the case of a retrospective and/or observational study using materials, such as existing documents (opt-out approach).