Bertram, Jonathan R., Amy Porath, Dallas Seitz, Harold Kalant, Ashok Krishnamoorthy, Andra Smith, and Rand Teed. “Canadian Guidelines on Cannabis Use Disorder Among Older Adults”. Canadian Geriatrics Journal 23, no. 1 (March 13, 2020): 135-142. Accessed January 27, 2021. https://cgjonline.ca/index.php/cgj/article/view/424.