Received: 20 January 2020
Accepted: 1 September 2020
First Online: 7 September 2020
Ethics approval and consent to participate
: The study was performed according to the Helsinki Declaration and Toyooka Hospital review board approval was duly obtained (registration number, 137).
: Consent for publication was waived.
: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.