RT Journal Article SR Electronic T1 A preliminary investigation of laterality in Parkinson’s disease and susceptibility to psychosis JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 610 OP 611 DO 10.1136/jnnp.65.4.610 VO 65 IS 4 A1 SHERGILL, SUKHWINDER S A1 WALKER, ZUZANA A1 LE KATONA, CORNELIUS YR 1998 UL http://jnnp.bmj.com/content/65/4/610.abstract AB