Shrestha, Suman http://orcid.org/0000-0002-0529-5528
Higuchi, Tetsuya http://orcid.org/0000-0003-1317-3560
Shirai, Katsuyuki
Tokue, Azusa
Shrestha, Shreya
Saitoh, Jun-ichi
Hirasawa, Hiromi
Ohno, Tatsuya
Nakano, Takashi
Tsushima, Yoshito
Article History
Received: 9 July 2019
Accepted: 16 October 2019
First Online: 22 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study is approved by Institutional Review Board (IRB) of Gunma University (IRB no. HS2017-255).
: Informed consent was waived, owing to the retrospective nature of the study.