RT Journal Article SR Electronic T1 Sleep Disorders and Neurological Disease. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 139 OP 139 DO 10.1136/jnnp.69.1.139d VO 69 IS 1 A1 PARKES, DAVID YR 2000 UL http://jnnp.bmj.com/content/69/1/139.5.abstract AB