Most recently, in June 2022, some of this analysis found its way into the high-profile government-commissioned Khan Review: Making Smoking Obsolete
"The strange story of how the pot holiday '4/20' got its name"
- If you would like support to quit, including if you are worried that you might be dependent on drugs, speak to your GP or the specialist drug treatment service in your area
In other words, Massachusetts sacrificed $120 million in annual revenue to have no significant effect on smoking
For example, federally funded research at the University of California, Los Angeles compared the lifetime risk of lung cancer among more than 2,000 long-term marijuana smokers, tobacco smokers, and non-smokers