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===2017 [https://www.ncbi.nlm.nih.gov/pubmed/27940486 Moist smokeless tobacco (Snus) use and risk of Parkinson's disease]=== | ===2017 [https://www.ncbi.nlm.nih.gov/pubmed/27940486 Moist smokeless tobacco (Snus) use and risk of Parkinson's disease]=== | ||
*Smoke-free nicotine appears to reduce the risk of Parkinson’s disease by 60%. | *Smoke-free nicotine appears to reduce the risk of Parkinson’s disease by 60%. | ||
*different website same study? [Moist smokeless tobacco (Snus) use and risk of Parkinson’s disease|https://academic.oup.com/ije/article/46/3/872/2656164] | *different website same study? [Moist smokeless tobacco (Snus) use and risk of Parkinson’s disease|https://academic.oup.com/ije/article/46/3/872/2656164] | ||
===1986: [https://pubmed.ncbi.nlm.nih.gov/3786334/ Effects of nicotine on finger tapping rate in non-smokers]=== | |||
===2020 [https://n.neurology.org/content/neurology/94/20/e2132.full.pdf Tobacco smoking and the risk of Parkinson disease A 65-year follow-up of 30,000 male British doctors]=== | ===2020 [https://n.neurology.org/content/neurology/94/20/e2132.full.pdf Tobacco smoking and the risk of Parkinson disease A 65-year follow-up of 30,000 male British doctors]=== | ||
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