Introduction Cannabis sativa has been used for a wide variety of industrial, medical, and non-medical uses for thousands of years, yet remains a source of controversy across the fields of medicine, law, and occupational safety1-5. Access to and consumption of cannabis have increased as a result of more favorable public attitudes and state access laws. Nearly 18 percent of full-time workers and 21 percent of part-time workers used cannabis in 20186. Lifetime, past-year, and past-month use among full-time workers all increased from 2017 to 20186. The implications and challenges of increasing cannabis consumption by workers requires urgent and critical research
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