Hu, Zhengfei
Naka, Makiko
Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science and Technology (23101010)
Article History
First Online: 10 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board at Hokkaido University.
: Informed consent was obtained from all participants included in the study. All participants were informed their utterances would be recorded. No identifying information was used for any participants in the study.