I agree, Spotted Owl.
Possibly others might have a better link or two.
I found an article in the Jewish Week (on-line) that had this statement to make about the halachic perspective of Terri's death.
Those who distinguish nutrition and hydration from other forms of medical treatment note that withdrawal of this form of support is frequently an independent cause of death by gradual starvation and hydration, and not from the underlying disease, Ritholtz wrote.
He said that from a halachic perspective, a persistent vegetative state and Alzheimers disease are not terminal conditions, per se, despite the fact that they are progressive, irreversible and inevitably result in death.
Patients with these illnesses, Ritholtz wrote, deserve the same full range of treatment that is made available to any other patient.
source article:http://www.thejewishweek.com/news/newscontent.php3?artid=10750