Amanda Doggett, PhD1,2,3; Allan Fein, MSc1,2,3; Tracey Campbell, PhD4; et alNicola Henriquez, BSc4; Jason W. Busse, PhD1,5,6; James MacKillop, PhD1,2,3 Author Affiliations Article Information J AMA Netw Open. 2024;7(6):e2414922. doi:10.1001/jamanetworkopen.2024.14922 Download at https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2819563 Introduction In October 2018, Canada legalized...