I haven't tried it, although it is on The List. As has been pointed out, it is not going to be a big money maker if it works. So, we would probably be seeing a low level of interest whether it worked or not. So, that leaves the freelancers-
http://www.earthclinic.com/CURES/parkinsons.html
http://www.eurekalert.org/pub_releas...-cho081508.php