Tibbo, Philip G; Crocker, Candice E; Lam, Raymond W.; Meyer, Jeff; Sareen, Jitender; and Aitchison, Katherine J. 2017. Implications of Cannabis Legalization on Youth and Young Adults. Position paper. Canadian Psychiatric Association (https://www.cpa-apc.org/wp-content/uploads/Cannabis-Academy-Position-Statement-ENG-FINAL-no-footers-web.pdf)