Editing Multiple system atrophy (section)

==Epidemiology==
Multiple system atrophy is estimated to affect approximately 5 per 100,000 people. At autopsy, many patients diagnosed during life with Parkinson's disease are found actually to have MSA, suggesting that the actual incidence of MSA is higher than that estimate.<ref name=":0">{{cite journal | vauthors = Fanciulli A, Wenning GK | title = Multiple-system atrophy | journal = The New England Journal of Medicine | volume = 372 | issue = 3 | pages = 249–263 | date = January 2015 | pmid = 25587949 | doi = 10.1056/NEJMra1311488 }}</ref> While some suggest that MSA affects slightly more men than women (1.3:1), others suggest that the two sexes are equally likely to be affected.<ref name=":0" /><ref name="pmid10331752"/><ref name=Wenning04/> The condition most commonly presents in persons aged 50–60.<ref name=":0" />