a long article which I hope someone will read to verify that I am correct or not in stating studies show genetic factors not in evidence for pwp over 50 age at diagnosis http://jama.jamanetwork.com/article.aspx?articleid=188406 Ray Rayilyn Brown Past Director AZNPF Arizona Chapter National Parkinson Foundation ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn