Nakao, Sari
Minaguchi, Takeo
Itagaki, Hiroya
Hosokawa, Yoshihiko
Shikama, Ayumi
Tasaka, Nobutaka
Akiyama, Azusa
Ochi, Hiroyuki
Matsumoto, Koji
Satoh, Toyomi
Article History
Received: 20 February 2020
Accepted: 16 April 2020
First Online: 6 May 2020
Ethics approval and consent to participate
: The present study was conducted in accordance with the Declaration of Helsinki. The study protocol was approved by the Ethics Committee University of Tsukuba Hospital (H27–143) with a waiver of informed consent.
: Not applicable.
: The authors declare that they have no competing interests.