Tsunekawa, Katsuhiko https://orcid.org/0000-0002-6119-4158
Matsumoto, Ryutaro
Ushiki, Kazumi
Martha, Larasati
Shoho, Yoshifumi
Yanagawa, Yoshimaro
Ishigaki, Hirotaka
Yoshida, Akihiro
Araki, Osamu
Nakajima, Kiyomi
Kimura, Takao
Murakami, Masami
Article History
Received: 20 August 2020
Accepted: 21 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: Written informed consent was obtained from all participants. This study was approved by the ethics committee of Gunma University Graduate School of Medicine (Approval number 13–36).
: Not applicable.
: The authors declare that they have no competing interests.