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Authors
Ohnuma, Hiroyuki https://orcid.org/0000-0002-4350-6971
Sato, Yasushi
Onoyama, Naoki
Hamaguchi, Kota
Hayasaka, Naotaka
Sato, Masanori
Murase, Kazuyuki
Takada, Kohichi
Miyanishi, Koji
Murakami, Takeshi
Ito, Tatsuya
Nobuoka, Takayuki
Takemasa, Ichiro
Kato, Junji
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Article History
Received: 31 October 2020
Accepted: 9 January 2021
First Online: 3 February 2021
Compliance with ethical standards
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: J. Kato received research funding from SymBio Pharmaceuticals, Alexion Pharmaceuticals, Ono Pharmaceutical, Asahi Kasei Pharma, Astellas Pharma, Eisai, Otsuka Pharmaceutical, Kyowa Hakko Kirin, Shionogi, Daiichi Sankyo, Taiho Pharmaceutical, Chugai Pharmaceutical, Toyama Chemical, and Pfizer Japan, outside the submitted work. The other authors have no conflict of interest.
: The ethical committee of Sapporo Medical University Hospital approved this study. In this retrospective study, patients’ consent was obtained by opt-out manner. Participating patients were excluded when they specified that they were unwilling to participate.
