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2Anderson, L. A., PharmD (Ed.). (n.d.). Drug Testing FAQs. Retrieved January 29, 2021, from https://www.drugs.com/article/drug-testing.html#:~:text=Urine%20drug%20testing%20Urine%20is%20the%20most%20common,for%20testing%20of%20the%20federally%20mandated,%20safety-sensitive%20workforce.

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4Peter J. Grinspoon, M. (2020, December 17). Blood Drug Test: Facts, Pros and Cons, Detection Window. Retrieved January 28, 2021, from https://addictionresource.com/drug-testing/blood-drug-testing/

5How Does A Hair Drug Test Work. (n.d.). Retrieved January 28, 2021, from https://www.expomed.com/drugtest/hair-drug-testing-explained-part-1.html

6Harkson, K. (2019, September 18). The Hair Follicle Drug Test: Myth Vs. Fact. Retrieved January 28, 2021, from https://www.usdrugtestcenters.com/drug-test-blog/259/the-hair-follicle-drug-test-myth-vs-fact.html

7Commissioner, O. (n.d.). FDA Regulation of Cannabis and Cannabis-Derived Products: Q&A. Retrieved January 28, 2021, from https://www.fda.gov/news-events/public-health-focus/fda-regulation-cannabis-and-cannabis-derived-products-including-cannabidiol-cbd