Canna~Fangled Abstracts Availability of legalized cannabis reduces demand for illegal cannabis among Canadian cannabis users: evidence from a behavioural economic substitution paradigm. Can J Public Health. 2018 Dec 6. doi: 10.17269/s41997-018-0160-4. Amlung M1,2,3, MacKillop J4,5,6,7. Author information…Freedom WaresDecember 6, 2018