Hirano, Daishi https://orcid.org/0000-0002-2398-5928
Miwa, Saori
Kakegawa, Daisuke
Umeda, Chisato
Takemasa, Yoichi
Tokunaga, Ai
Yuhei, Kawakami
Ito, Akira
Article History
Received: 31 August 2020
Revised: 12 November 2020
Accepted: 5 January 2021
First Online: 19 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest to declare.
: This retrospective study involving human participants was conducted in accordance with the tenets of the Declaration of Helsinki and the Ethical Guidelines for Epidemiological Research of the Ministry of Health, Labor and Welfare of Japan. Approval was obtained from the Ethics Review Committee of Jikei University School of Medicine (ID: 9887).
: The requirements for informed consent and consent for publication were waived because of the retrospective nature of the study.