Funding for this research was provided by:
Nippon Suisan Ltd. (N/A)
Received: 5 August 2020
Accepted: 26 January 2021
First Online: 1 March 2021
Ethics approval and consent to participate
: This study was reviewed and approved by Ethics Committee for Human Experiments at Teikyo Heisei University (ID: R01-040) in compliance in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.