Tei-tominaga, Maki http://orcid.org/0000-0002-7000-9559
Nakanishi, Miharu
Funding for this research was provided by:
Japan Society for the Promotion of Science (JP16H05612)
Article History
Received: 17 February 2020
Accepted: 18 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: This study was approved in 2015 by the institutional ethics committee of Tokyo Gakugei University (#247). All procedures were carried out in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments. Written informed consent was not sought from the participants, as the voluntary completion and return of the questionnaire already implied consent.
: Not applicable.
: The authors declare that they have no competing interests.