RT Journal Article SR Electronic T1 Epidemiological Psychiatry. (Bailliere's Clinical Psychiatry) JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 597 OP 597 DO 10.1136/jnnp.60.5.597-a VO 60 IS 5 A1 Carol Brayne YR 1996 UL http://jnnp.bmj.com/content/60/5/597.2.abstract AB