John Stapleton appeals on behalf of the Parkinson's Disease Society. The Parkinson's Disease Society is a charity dedicated to supporting all people with Parkinson's, their families, friends and carers. Donations to Parkinson's Disease Society should be sent to FREEPOST BBC Radio 4 Appeal, please mark the back of your envelope Parkinson's Disease Society. Credit cards: Freephone 0800 404 8144. If you are a UK tax payer, please provide Parkinson's Disease Society with your full name and address so they can claim the Gift Aid on your donation worth another 25 per cent. The online and phone donation facilities are not currently available to listeners without a UK postcode. Registered Charity No: England and Wales No. 258197, Scotland No: SC037554.