About the Authors

Lianping Ti

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Conceptualization, Formal analysis, Funding acquisition, Project administration, Supervision, Writing – original draft, Writing – review & editing

bccsu-lt@bccsu.ubc.ca

Affiliations British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada

Cameron J. Grant

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Data curation, Formal analysis, Writing – review & editing

Affiliation British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada

Samuel Tobias

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Data curation, Project administration, Writing – review & editing

Affiliations British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada

Dennis K. Hore

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Writing – review & editing

Affiliations Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada, Department of Computer Science, University of Victoria, Victoria, British Columbia, Canada

Richard Laing

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Resources, Writing – review & editing

Affiliation Strategic Research and Science Development, Health Canada Drug Analysis Service, Burnaby, British Columbia, Canada

Brandon D. L. Marshall

Contributed equally to this work with: Lianping Ti, Cameron J. Grant, Samuel Tobias, Dennis K. Hore, Richard Laing, Brandon D. L. Marshall

Roles Conceptualization, Writing – original draft

Affiliation Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, United States of America

Competing Interests

The authors declare that no competing interests exist.