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Article History

Received: 16 September 2022

Accepted: 8 August 2023

First Online: 28 August 2023

Declarations

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: The whole process and all methods of the study were performed in accordance with the relevant guidelines and regulations and protocol was approved by the Ethics Committee of the Research Ethics Committee of the Osaka International Cancer Institute. All participants were informed about the aims and procedures of the study and informed consents were received through on-line form before they participating in the study.As for minors, this study was exempted from the obligation to obtain informed consent from the parents/guardians of minors under the age of 18 in Japan. The Ethical Guidelines for Medical and Health Research Involving Human Subjects enforced by Japan’s Ministry of Education, Culture, Sports, Science and Technology and Japan’s Ministry of Health, Labour and Welfare addressed, “when the research individuals have completed junior high school or another relevant schooling, or is 16 years or older, and is considered to have enough judgment concerning the research to be implemented on themselves, and the following matters are prescribed in the research protocol, and the chief executive of the research implementing entity approves to carry out the research after relevant ethical review committee deliberation, informed consent shall be obtained not from representative but from the said research subject. (1) The research to be implemented does not involve any invasiveness; and (2) Information concerning the implementation of the research, including the purpose of the research and how specimens or information will be handled, is made public, and opportunities to refuse that the research is commenced or continued on the research subject are ensured for persons who exercise parental authority over the said research subject and guardians of the minor 29.” All participants completed junior high school, the present study did not involve any invasiveness, and the approval of the Research Ethics Committee of the Osaka International Cancer Institute for the study protocol was obtained as aforementioned.

: Not applicable.

: The authors declare that they have no competing interests.