Received: 9 January 2022
Accepted: 22 March 2022
First Online: 29 March 2022
: This study was conducted in accordance with the Declaration of Helsinki and Ethical Guidelines for Medical and Health Research Involving Human Subjects. This study was approved by the ethics committee of the National Hospital Organization Tokyo Medical Center (R18-006) and registered in the UMIN Clinical Trials Registry (UMIN000034479: 13/10/2018). Written informed consent was obtained from all participants before study enrollment.
: Not applicable.
: The authors declare that they have no competing interests.