weed tobacco mix Don't smoke it with tobacco: scientists suggest ways to make cannabis safer | Cannabis Smoking weed and tobacco in

weed tobacco mix

weed tobacco mix Don't smoke it with tobacco: scientists suggest ways to make cannabis safer | Cannabis Smoking weed and tobacco in

Name: weed tobacco mix Don't smoke it with tobacco: scientists suggest ways to make cannabis safer | Cannabis Smoking weed and tobacco in
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However, the cross-sectional study design and the retrospective assessments limit causal inference from the present analyses, and recall bias may have affected reports of smoking initiation, depression onset, and cessation history

American Journal of Preventative Medicine, 66 (1): 169-181

We piloted similar questions in face-to-face interviews with 108 electronic cigarette users 19 and found that the only question needing adaptation/clarification for electronic cigarette users was the item about frequency of use