what is its cause?
UNANSWERABLE
the right to die issue came to national attention in 1975 with the landmark case involving Involving Theresa Marie Schiavo what is this case about? It was a right-to-die legal case in the United States  involving a woman in an irreversible persistent vegetative state what is its date? From 1998 to 2005 why did she plead for death? Because she was in an irreversible persistent vegetative state what kind of state is this? It is a disorder of consciousness in which patients with severe brain damage are in a state of partial arousal rather than true awareness.
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Persistent vegetative state [SEP] Causes
There are three main causes of PVS (persistent vegetative state): Medical books (such as Lippincott, Williams, and Wilkins. (2007). In A Page: Pediatric Signs and Symptoms) describe several potential causes of PVS, which are as follows: In addition, these authors claim that doctors sometimes use the mnemonic device AEIOU-TIPS to recall portions of the differential diagnosis: Alcohol ingestion and acidosis, Epilepsy and encephalopathy, Infection, Opiates, Uremia, Trauma, Insulin overdose or inflammatory disorders, Poisoning and psychogenic causes, and Shock.