smoking weed vs smoking cigarettes lungs Imaging study: Marijuana smokers show higher rates of emphysema, airway diseases than tobacco smokers They compared weed, tobacco and
They compared weed, tobacco and non smoker's lungs Smokers lungs: Weed, tobacco, and non smokers Effects of cannabis smoking on the respiratory system: A state of the art review ScienceDirect Smoking pot doesn't hurt lung capacity, study shows
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