Ray, any gray search box on PIENO will answer that question about all things Parkinson as well as other conditions. This is the link to the results of entering in the search box. http://tinyurl.com/9znbj John If you would get in the habit of reading your Parkinsn list messages at PIENO a searchbox will be on the same page with the messages. Highlighting a word that you want more information and dragging it to the keywords box will search for that word and chances are that the 20 organizations in our index will have the information you need. The same search also searches the archives for instances when that was discussed on the list. The URL to the current Parkinsn list messages is: http://tinyurl.com/b4mfs ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn