Footnotes

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests None declared.

• Patient consent Not required.

• Provenance and peer review Commissioned; internally peer reviewed.

• Author note Dr Saitz is professor of community health sciences and medicine, and an addiction medicine specialist and primary care physician-researcher with 25 years of experience studying the integration of unhealthy substance use care into general health settings.