Murray, Isn't it funny how it was never given a second thought until someone famous believes it may have some validity. Unless I missed something Ivan was pleading with someone to research this area, but no one came forward. No one, to my knowledge mentioned these researchers, and now they are coming out of the woodwork. Something doesn't ring true to me. Or maybe it's just my parky disposition. Whatever, at least somebody is covering all the angles. Actually, my true belief is that PD is caused by exposure to the elements Cadmium and/or Lithium, which were both not so coincidentally discovered in 1817. That is the same year that Dr. Parkinson wrote his essay on "The Shaking Palsy". Go figure. Greg 49/35/35 ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn