RT Journal Article SR Electronic T1 Qualitative performance characteristics differentiate dementia with Lewy bodies and Alzheimer's disease JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 565 OP 566 DO 10.1136/jnnp.72.5.565 VO 72 IS 5 A1 C Ballard A1 J O'Brien A1 M Tovee YR 2002 UL http://jnnp.bmj.com/content/72/5/565.abstract AB