Dear Carmen: Not at all, a very reasonable question. I am not seeking particular knowledge about PD, but rather, general. Being afflicted with Wegener's Granulomatosis, an autoimmune disorder, I joined as soon as possible a mail list of those interested in this disorder. I quickly learned what a fine resource an interested group such as this can be. When my father was diagnosed with PD, I joined PIEN and am already gratified. I feel I will know developments pretty much as they happen. Michael in Tampa Father is PWP [log in to unmask] --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.307 / Virus Database: 168 - Release Date: 12/12/2001 ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn