It’s only one sentance, second to the last paragraph in the author’s note (at least my edition). She says that the Michael J Fox foundation was a great resource when she was diagnosed. I probably would have missed it if I wasn’t specifically looking for the reference. We have an author guide for her that includes a link to a great article she wrote about her diagnosis if you’re interested! https://bookgirlsguide.com/fiona-davis-books/