Received: 19 March 2021
Accepted: 17 May 2021
First Online: 26 May 2021
: This study was approved by the Ethics Committee of Akita University Graduate School of Medicine (No. 1222). The participant provided informed consent and signed a human subject institutional review board consent form.
: Consent to publish was obtained from this patient.
: There are no financial or other relations that could lead to a conflict of interest regarding this study.