Ito, Shoko https://orcid.org/0000-0001-6813-5268
Fujiwara, Shin-ichiro
Ikeda, Takashi
Toda, Yumiko
Mashima, Kiyomi
Umino, Kento
Minakata, Daisuke
Nakano, Hirofumi
Yamasaki, Ryoko
Kawasaki, Yasufumi
Sugimoto, Miyuki
Ashizawa, Masahiro
Yamamoto, Chihiro
Hatano, Kaoru
Sato, Kazuya
Oh, Iekuni
Ohmine, Ken
Muroi, Kazuo
Kanda, Yoshinobu
Article History
Received: 26 June 2019
Accepted: 4 December 2019
First Online: 18 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this retrospective study, formal informed consents are not required. This retrospective 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.