Izumo, Wataru http://orcid.org/0000-0001-7348-1616
Higuchi, Ryota http://orcid.org/0000-0003-2423-4154
Yazawa, Takehisa
Uemura, Shuichiro
Shiihara, Masahiro
Yamamoto, Masakazu
Article History
Received: 5 July 2019
Accepted: 27 September 2019
First Online: 24 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the institutional review board of Tokyo Women’s Medical University (approval number 5083) and the Japanese Society for Abdominal Emergency Medicine (approval number 19–2). All procedures involving human participants were conducted in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration. This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.