RT Journal Article SR Electronic T1 ADVANCES IN TERATOLOGY Vol. 1 JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 475 OP 475 DO 10.1136/jnnp.30.5.475-b VO 30 IS 5 A1 Simpson, J. A. YR 1967 UL http://jnnp.bmj.com/content/30/5/475.3.abstract AB