The Acquired Metabolic Disorders of the Nervous System, Hepatic Stupor and Coma (Hepatic, or Portal-Systemic Encephalopathy)
Adams & Victors Principles of Neurology Chp 40, pg 1142, Ropper, A.H.,et al, 2014
Withdrawal of Life-Support from Patients in a Persistent Vegetative State
Lancet 337:96-98, Boyd,K.M., 1991