RT Journal Article SR Electronic T1 POST-ENCEPHALITIC PARKINSONISM WITH AMYOTROPHY JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 50 OP 56 DO 10.1136/jnnp.17.1.50 VO 17 IS 1 A1 Greenfield, J. G. A1 Matthews, W. B. YR 1954 UL http://jnnp.bmj.com/content/17/1/50.abstract AB