 A review study from 2012 from the Center for Health Science, Menlo Park; for the potential neuroprotective effects of nicotine for parkinsons.  http://www.ncbi.nlm.nih.gov/pubmed/22693036  Wouldn't native american use of tobacco as medicine be important to add to the article as well to achieve NPOV? I guess they will need to test cigarettes for 10 years before putting them on the market as medicine right; and they definitely can't sell cigarettes before than.