https://www.vice.com/en/article/ne45vd/more-vancouver-opioid...
https://mugglehead.com/vancouver-cannabis-harm-reduction-pro...
"...no consensus among studies that cannabis use is associated with reduced opioid use or longer treatment retention when used during methadone maintenance therapy"
https://pubmed.ncbi.nlm.nih.gov/31744904/
https://www.vice.com/en/article/ne45vd/more-vancouver-opioid...
https://mugglehead.com/vancouver-cannabis-harm-reduction-pro...