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Article History

Received: 3 September 2020

Accepted: 30 November 2020

First Online: 14 December 2020

Ethics approval and consent to participate

: This proposal has been approved by Institutional Review Board of the University of Hong Kong/Hong Kong West Cluster of the Hospital Authority (UW18–458). An information sheet and a written consent form which has been formally approved by the ethics committee was distributed to participants when they were invited to take part in the research project. In obtaining informed consent from the participants, no undue pressure was applied. In addition, the principal investigator would answer any questions the potential participants may have. Participants were free to decide whether to participate in this study, and they could revoke their consent and withdraw from the study at any time during the study, without any reason. This decision would not affect their medical care, nor would it cause any unpleasant results. Participation in this study would not make excessive discomfort or other injuries. Observation of mental state and any potential of self-harm behaviors was closely taken throughout the processes of respective interventions or assessments. When necessary, participants would be advised to consult a professional. Regarding data monitoring, any information obtained in this study was remain very strictly confidential, will be known to no-one, and was used for research purposes only. Codes, not names, were used on all test instruments to protect confidentiality. Data were stored in encrypted file in the computer and they were locked in cabinets for keeping participants’ confidential information.

: Not applicable.

: The authors declare that they have no competing interests.