RT Journal Article SR Electronic T1 Blood Flow in the Brain JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1321 OP 1322 DO 10.1136/jnnp.52.11.1321-b VO 52 IS 11 A1 Frackowiak, R YR 1989 UL http://jnnp.bmj.com/content/52/11/1321.3.abstract AB