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Article History

Received: 29 December 2017

Accepted: 20 March 2018

First Online: 6 April 2018

Ethics approval and consent to participate

: Harmonized research ethics approval was obtained from the Interior Health and University of British Columbia Ethics Review boards (Board of Record Approval Reference #: 2016-17-060-I). Consent to participate in the research study was sought from each participant who expressed interest in fentanyl urine checking. Consent to participate was be obtained verbally. Using a consent script (see supporting documents), staff explained the risks and benefits of the study (see Additional file InternalRef removed).

: Not applicable.

: The authors declare that they have no competing interests.

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