Funding for this research was provided by:
Rice Stable Supply Support Organization
Text and Data Mining valid from 2020-05-06
Received: 21 March 2020
Accepted: 23 April 2020
First Online: 6 May 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Kanagawa University of Human Services (ID number 71-31). Written informed consent was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.