Morishita, Shingo
Yoshii, Toshitaka https://orcid.org/0000-0003-3511-9020
Okawa, Atsushi
Inose, Hiroyuki
Hirai, Takashi
Yuasa, Masato
Fushimi, Kiyohide
Fujiwara, Takeo
Article History
Received: 20 February 2020
Accepted: 28 October 2020
First Online: 10 November 2020
Ethics approval and consent to participate
: The current study was approved by the review board of Tokyo Medical and Dental University. The informed consent was not obtained for each patient, because all data in this study were completely anonymous.
: Not applicable.
: The authors declare that they have no competing interests.