Dear Nancy Walker-- welcome to the list--hope you can find answers to your inquiries. May I suggest that you and/or your parents may want to call the National Parkinson Foundation in Miami (1-800-327-4545) and ask to be on their mailing list. They will send you their excellent journal, as well as a number of very informative pubs. The have an outpatient facility which you *might* be able to persuade your dad to visit? Good luck! Camilla Flintermann