Article History
Received: 19 April 2021
Accepted: 13 October 2021
First Online: 2 November 2021
Declarations
:
: All participants were informed about the study orally and with written information and provided written informed consent prior to being enrolled in the study. This study was approved by the University of Tsukuba medical ethics board (No 1353–1), and was performed in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors report no declarations of interest.