1. Effect of cannabis use in people with chronic non-cancer pain prescribed opioids: findings from a 4-year prospective cohort study 
Gabrielle Campbell, PhD, Wayne D Hall, PhD, Amy Peacock, PhD, Nicholas Lintzeris, MD, Raimondo Bruno, PhD, Briony Larance, PhD, Suzanne Nielsen, PhD, Milton Cohen, MD, Gary Chan, PhD, Richard P Mattick, PhD, Fiona Blyth, PhD, Marian Shanahan, PhD, Timothy Dobbins, PhD, Michael Farrell, MD, Louisa Degenhardt, PhD 
The Lancet Public Health 
Volume 3, Issue 7, Pages e341-e350 (July 2018)
DOI: /S (18)
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license. Terms and Conditions

2. Figure Study flow chart
Patient flow and reasons for exclusion between study referral and baseline interview are provided in the appendix.
The Lancet Public Health 2018 3, e341-e350DOI: ( /S (18) )
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license. Terms and Conditions