I can't write about end stage Parkinson's Disease. With a mother-in-law who died from/with Parkinson's, a mother dying from Lewy Body Dementia, and me with Parkinson's who will eventually die from/with it, it is a topic too close to home (see Stages and Progression of Parkinson's Disease).
But Margot, a nurse specializing in gerontology, has clearly and objectively wrote about end stage Parkinson's on this site:
Death from/with Parkinson's is not pretty. It's a dirty job to write about end stage Parkinson's, but someone had to do it. Thank you, Margot.