Ito, Shoko http://orcid.org/0000-0001-6813-5268
Fujiwara, Shin-ichiro
Murahashi, Rui
Nakashima, Hirotomo
Matsuoka, Sae
Ikeda, Takashi
Kawaguchi, Shin-ichiro
Toda, Yumiko
Ban, Tetsuaki
Nagayama, Takashi
Umino, Kento
Minakata, Daisuke
Morita, Kaoru
Nakano, Hirofumi
Yamasaki, Ryoko
Ashizawa, Masahiro
Yamamoto, Chihiro
Hatano, Kaoru
Sato, Kazuya
Oh, Iekuni
Ohmine, Ken
Kanda, Yoshinobu http://orcid.org/0000-0002-4866-9307
Article History
Received: 27 July 2020
Accepted: 6 November 2020
First Online: 9 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this retrospective study, formal informed consent is not required. This study was approved by the Institutional Review Board of Jichi Medical University and performed in accordance with the Declaration of Helsinki and its later amendments.