Got this over on craigslist , just too funny.

Dear loved-ones,
I make the following statement in a sound state of mind and of my own volition:

If I am rendered comatose and determined to be in a persistent vegetative state (PVS) for a period longer than one month and if no imminent cure is forthcoming, I do not wish to be kept alive by artificial means including but not limited to nourishment, hydration, etc.