Original sentence: A persistent vegetative state (or PVS), also known as cortical death, is a condition of patients with severe brain damage in whom coma has progressed to a state of "wakefulness without awareness".Few people have been reported to recover from PVS.Some authorities hold that PVS is, in fact, irreversible, and that the reportedly recovered patients were not suffering from true PVS.The case of American woman Terri Schiavo is often cited as an example of PVS, having been so diagnosed by a court-appointed physician in 1998, although this diagnosis is disputed by some
Edited sentence: A persistent vegetative state (or PVS) is a condition of patients with severe brain damage in whom coma has progressed to a state of "wakefulness without awareness".American woman Terri Schiavo is a case often cited as an example of PVS.Few people ever recover from PVS