MAHONEY, FI. Functional evaluation : the Barthel index. Maryland St Med J. 1965, 14, 61-65
TEASDALE, GM. A universal subarachnoid hemorrhage scale : report of a committee of the World Federation of Neurosurgical Societies. J Neurol Neurosurg Psychiatry. 1988, 51, 1457-1463
HUNT, WE. Timing and perioperative care in intracranial aneurysm surgery. Clin Neurosurg. 1974, 21, 79-89
JENNETT, B. Assessment of outcome after severe brain damage. A practical scale. Lancet. 1975, 1, 480-484
SAVELAND, H. Outcome evaluation following subarachnoid hemorrhage. J Neurosurg. 1986, 64, 191-196