RT Journal Article SR Electronic T1 How common is dementia with Lewy bodies? JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 697 OP 698 DO 10.1136/jnnp.74.6.697 VO 74 IS 6 A1 R A Barker A1 T Foltynie YR 2003 UL http://jnnp.bmj.com/content/74/6/697.abstract AB