RT Journal Article SR Electronic T1 YEAR BOOK OF PSYCHIATRY AND APPLIED MENTAL HEALTH 1975 JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1142 OP 1142 DO 10.1136/jnnp.39.11.1142-a VO 39 IS 11 A1 Gibbons, J. L. YR 1976 UL http://jnnp.bmj.com/content/39/11/1142.2.abstract AB