Aoishi, Yuka
Oura, Shoji
Nishiguchi, Haruka
Hirai, Yoshimitsu
Miyasaka, Miwako
Kawaji, Mari
Shima, Aya
Nishimura, Yoshiharu
Article History
Received: 3 February 2020
Accepted: 2 April 2020
First Online: 8 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: The study was approved by the Wakayama Medical University Hospital Institutional Review Board (2818) and was conducted in accordance with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This study was retrospective, so according to committee procedures, study information was available at the site of the related facilities where it could be easily checked in lieu of using a consent form. Formal consent is not required for this type of study.