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A 2021 JAMA Pediatrics research letter analyzing youth smoking rates following the ban on sales of flavored tobacco products in San Francisco, California, surprisingly concluded that the ban was associated with increased smoking among high school students under the age of 18 relative to other school districts

These risk estimates are based on the reference group of non-drinkers and do not consider sick quitters, and therefore these risk estimates are biased and should not be used ( The data presented in this study are also based on population statistics for Canada

Question 4: Box aging refers to what

Psychiatry 38, 6572