Accepted for Publication: August 31, 2021.
Published: November 4, 2021. doi:10.1001/jamanetworkopen.2021.33076
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2021 MacKillop J et al. JAMA Network Open.
Corresponding Author: James MacKillop, PhD, Peter Boris Centre for Addictions Research, St Joseph’s Healthcare Hamilton/McMaster University, 100 W Fifth St, Hamilton, ON L8N 3K7, Canada (firstname.lastname@example.org).
Author Contributions: Dr MacKillop and Ms Cooper had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: MacKillop.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: MacKillop, Cooper.
Critical revision of the manuscript for important intellectual content: MacKillop, Costello.
Statistical analysis: All authors.
Administrative, technical, or material support: MacKillop.
Conflict of Interest Disclosures: Dr MacKillop reported serving as principal and senior scientist at Beam Diagnostics and receiving consulting fees from Clairvoyant Therapeutics outside the submitted work. No other disclosures were reported.
Funding/Support: This work was supported by the Peter Boris Chair in Addictions Research and Homewood Research Institute, an independent charitable organization funded through a variety of sources, including Homewood Health, community stakeholders, corporations, and private foundations.
Role of the Funder/Sponsor: The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: Kyla Belisario, MA (Peter Boris Centre for Addictions Research, St Joseph's Healthcare Hamilton/McMaster University), provided insights on an earlier data set and was not compensated for this work.
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