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Authors
Inoura, Satoshi https://orcid.org/0000-0002-4773-4488
Shimane, Takuya
Kitagaki, Kunihiko
Wada, Kiyoshi
Matsumoto, Toshihiko
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Funding
Funding for this research was provided by:
Ministry of Health, Labor and Welfare of Japan, Research Project on Addiction
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Article History
Received: 17 February 2020
Accepted: 25 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: The current study was approved by the Committee on the Ethical Guidelines for Medical and Health Research Involving Human Subjects of the National Center of Neurology and Psychiatry (Approval No: A2018–055). All study participants were fully briefed about the nature of the study, the voluntary nature of its completion, and their rights as participants. Participants were also informed that completion of the questionnaire constituted consent to participate; thus, if a participant returned a completed questionnaire to the person in charge of substance abuse prevention at each school, that action signaled consent. This process of obtaining consent was approved by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.
