1. Enhanced UV exposure on a ski-field compared with exposures at sea level
2. American Conference of Governmental Industrial Hygienists (ACGIH). 2022. Ultraviolet radiation. Cincinnati OH: ACGIH Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs).
3. Barcott B Whitney B Levenson MS Kudialis C. 2022. Jobs Report 2022: Legal cannabis now supports 428 059 American jobs. Leafly. [accessed 2022 Dec 29]. https://www.leafly.com/news/industry/cannabis-jobs-report.
4. Borchardt D. 2017. Marijuana industry projected to create more jobs than manufacturing by 2020. Forbes. [accessed 2023 March 30]. https://www.forbes.com/sites/debraborchardt/2017/02/22/marijuana-industry-projected-to-create-more-jobs-than-manufacturing-by-2020/?sh=29865ee93fa9.
5. Cannabis use, attitudes, and legal status in the U.S.: A review