is weed more dangerous or cigarette U of A researchers identify than 100 toxic chemicals in cannabis smoke What Parents Need to Know:

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Unfortunately, many people shy away from being tested because they feel embarrassed or ashamed

California's law raising the age for tobacco from 18 to 21 wasn't just a local policy shiftit was a national turning point

Weve known anecdotally there had been increasing calls and complaints about cannabis smoke, but we hadnt been able to quantify it until now. Chaiton and co-authors Alana K

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