RT Journal Article SR Electronic T1 Epidemiology of head injury. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 362 OP 369 DO 10.1136/jnnp.60.4.362 VO 60 IS 4 A1 Jennett, B YR 1996 UL http://jnnp.bmj.com/content/60/4/362.abstract AB