RT Journal Article SR Electronic T1 Pure torsional nystagmus as a consequence of head trauma. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 265 OP 267 DO 10.1136/jnnp.32.4.265 VO 32 IS 4 A1 Sabin, T D A1 Poche, J A YR 1969 UL http://jnnp.bmj.com/content/32/4/265.abstract AB