. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: J Subst Abuse Treat. 2021 Apr 20;127:108417. doi: 10.1016/j.jsat.2021.108417
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Fig. 1.
Flowchart of participants.