RT Journal Article SR Electronic T1 Sex and Parkinson’s disease: a world of difference? JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 787 OP 787 DO 10.1136/jnnp.2006.109991 VO 78 IS 8 A1 David J Burn YR 2007 UL http://jnnp.bmj.com/content/78/8/787.abstract AB