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Other nicotine replacement products eliminate inhalation from the delivery which should work efficiently for reducing harm, however the success rates aren't as good when compared to vaping, so the question is: do E-Cigarettes count as harm reduction

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Oxidative stress not only produces direct injurious effects in the lungs but also activates molecular mechanisms that initiate lung inflammation
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It found that cannabis use may increase the likelihood of breast cancer and laryngeal cancer (and may even cause cervical cancer)

In one study, Greeenman et al reported on the presence of mutations in the coding exons of more than 500 protein kinase genes in over 200 diverse human cancers including lung cancer
