RT Journal Article SR Electronic T1 Maternal age is not a risk factor for Parkinson's disease JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 130 OP 131 DO 10.1136/jnnp.71.1.130 VO 71 IS 1 A1 CURRIE, L J A1 HARRISON, M B A1 TRUGMAN, J M A1 BENNETT, J P A1 SWERDLOW, R H A1 MANNING, C A A1 WOOTEN, G F YR 2001 UL http://jnnp.bmj.com/content/71/1/130.abstract AB