Hayakawa, Keiko
Matsumoto, Seiichi
Ae, Keisuke
Tanizawa, Taisuke
Funauchi, Yuki
Minami, Yusuke
Saito, Masanori
Okawa, Atsushi
Article History
Received: 5 November 2019
Accepted: 27 July 2020
First Online: 31 August 2020
Ethical standards
: All patients gave informed consent prior to being included in this study. All procedures involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments. This study was approved by the Research Ethics Committee.
: Not applicable.
: There are no conflicts of interest for this manuscript.