Funding for this research was provided by:
Japan Society for the Promotion of Science (JP16J01964, JP18K17969)
Received: 5 November 2018
Accepted: 30 July 2019
First Online: 8 August 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Faculty of Design at Kyushu University. All participants provided written informed consent.
: Not applicable