is smoking cannabis as bad as cigarettes marijuana can raise risk of lung disease, chest scans indicate Mythbusters: Cannabis 20 times more
Mythbusters: Cannabis 20 times more carcinogenic than tobacco? NZ Drug Foundation Why Smoking ANYTHING Is a Terrible Idea YouTube Marijuana linked to heart disease; supplement may mitigate risk, study reports The Real Problem With Legal Weed The New York Times Are There Risks From Secondhand Marijuana Smoke? Early Science Says Yes KCUR Kansas City news and NPR Smoking pot vs. tobacco: What science says about lighting up FOX 2 Detroit
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